--- title: "What are the core points of full-process compliant operation for agency import of high-precision industrial O-rings?" description: "When enterprises import high-precision industrial O-rings through agents，problems such as port detention，customs seizure，cost overrun and compliance risks are often caused by omissions in document review and poor connection of core processes. Compliance implementation can be achieved through preliminary accurate document review，seamless connection of key nodes，and pre-deployment of emergency plans. Relying on the exclusive risk isolation measures of a professional foreign trade agency team，enter..." url: "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html" language: "en" type: "Q&A" category: "Import Agency Q&A" datePublished: "2026-05-03" dateModified: "2026-05-03" brand: "Zhongshen Trading China" answerCount: 10 --- # What are the core points of full-process compliant operation for agency import of high-precision industrial O-rings? ## Question I am the purchasing manager of a hydraulic equipment manufacturing factory in Suzhou. Last month, I was in urgent need of replenishing production line accessories, so I found a small agency to import a batch of high-precision high-pressure resistant fluororubber O-rings made in Germany. However, because the agent missed the review of the Certificate of Origin and material test report, the goods were directly seized after arriving at the port. I not only spent more than 20,000 yuan on port detention fees and document amendment fees, but also delayed the customer's order delivery deadline, was severely criticized by the boss, and am still writing a self-criticism now. I need to import another batch of O-rings of the same model this month, and the budget is very tight. I am afraid of customs seizure and port detention again, and also want to reduce import costs as much as possible. I would like to ask how to import O-rings compliantly through professional agents, what key details should be paid attention to in the whole process, how to avoid the risks last time, and whether there is a way to optimize costs? ## Answers ### Answer 1 — Best Answer The first part is the details of preliminary document review. It is necessary to focus on checking the **format compliance of the Certificate of Origin**，the CNAS qualification accreditation of the material test report，and the accuracy of HS code classification of O-rings -- the HS code corresponding to fluororubber O-rings should be accurately classified as 40169310. If it is mistakenly classified as ordinary rubber ring，it will directly trigger customs valuation query. At the same time，it is necessary to confirm in advance whether the commercial invoice provided by the supplier clearly indicates the core parameters such as O-ring specification，pressure rating and temperature resistance range，so as to avoid customs seizure caused by incomplete document information. In terms of core node connection，the time difference between customs declaration，inspection and logistics transportation should be compressed to within 48 hours，and pre-declaration should be completed 3 days before the arrival of the goods to ensure 100% matching between manifest information and customs declaration form. If shipping by sea is selected，the authority to extend the free storage period of the shipping company should be locked in advance to avoid additional port detention fees caused by customs declaration delays. Emergency plans should be deployed in advance: in case of customs inspection，the original scanned copy of the material test report and the product specification issued by the supplier should be provided as soon as possible，and a **exclusive on-site inspection coordinator** should be arranged to follow up，so as to avoid damage to the sealing performance of O-rings caused by devanning operations. In case of HS code dispute，the pre-classification review process should be launched immediately，and the classification opinion should be issued quickly relying on the customs classification specialist resources of the agency company. In the final compliance implementation stage，the filing of input deduction of import value-added tax should be completed simultaneously to ensure the consistency of document flow，fund flow and goods flow，so as to avoid subsequent tax inspection risks. At the same time，all documents should be kept for at least 5 years to meet the requirements of customs retrospective verification. **status:** accepted **Author:** Eric Zhou **Date:** 2026-05-03 ### Answer 2 When importing O-rings through an agent, the accurate classification of HS code is the core of customs declaration compliance. Fluororubber O-rings should be classified as 40169310. If they are mistakenly classified as ordinary rubber rings (40169990), it will not only lead to tariff rate difference (the former has a tariff of 8%, the latter 10%), but also trigger customs valuation query. If the customs determines that the classification is wrong, it will require the deletion and re-submission of the declaration form, resulting in a document amendment fee of at least 1500 yuan, and the port detention time of the goods will be extended by 3-5 days, and the port detention fee is calculated at 1200 yuan per container per day. In addition, the original factory purchase contract and foreign exchange payment voucher of O-rings should be prepared in advance. If the customs initiates a valuation query, complete price supporting materials can be submitted within 3 working days to avoid entering the price negotiation process and delaying customs clearance. **status:** suggested **Author:** Jason Wu **Date:** 2026-05-03 ### Answer 3 When importing O-rings through an agent, the logistics route should be selected according to the priority of the goods. For high-precision industrial O-rings, it is recommended to choose direct shipping routes instead of transshipment routes. Although transshipment routes can save 10%-15% of sea freight, the devanning and storage links of goods at the transshipment port are likely to cause impurities on the sealing surface of O-rings, affecting product performance. At the same time, the endorsement rules of the bill of lading should be confirmed in advance. If it is a straight bill of lading, it is necessary to ensure that the consignee is consistent with the operating unit on the customs declaration form; if it is an order bill of lading, the official seal of the agency company should be affixed on the back of the bill of lading and marked "to order". In addition, a demurrage reduction agreement should be signed with the shipping company, which can extend the free storage period from 7 days to 14 days, effectively reducing the risk of port detention. **status:** suggested **Author:** Kevin Lin **Date:** 2026-05-03 ### Answer 4 Costs can be optimized for agency imported O-rings through the VAT deferment policy. Eligible enterprises can choose to defer the payment of value-added tax when making import declarations. They do not need to pay import value-added tax immediately when the goods are cleared, but declare and pay uniformly in the value-added tax declaration period of the next month. This operation can revitalize the working capital of enterprises. For O-rings with an import batch value of 1 million yuan, it can save about 130,000 yuan of immediate capital occupation cost. At the same time, it is necessary to ensure that the imported goods are directly related to the production and operation of the enterprise. If they are used in R&D links, you can apply for full deduction of input tax of value-added tax in the import link. In addition, attention should be paid to the rationality of related party transaction pricing to avoid anti-tax avoidance investigation by tax authorities caused by excessive transfer pricing. **status:** suggested **Author:** Evelyn Li **Date:** 2026-05-03 ### Answer 5 The payment and receipt of foreign exchange for agency imported O-rings should strictly follow the compliance requirements. If cross-border RMB payment is adopted, the transfer should be completed through the CIPS system to ensure that the transaction note in the SWIFT message (or CIPS message) accurately indicates "payment for imported high-precision industrial O-rings", so as to avoid triggering the compliance review of the bank due to vague notes. If paying foreign exchange from an offshore account, supporting materials such as customs declaration form and commercial invoice should be provided to the bank in advance to prove the authenticity of the fund use. In addition, the error between the single foreign exchange payment amount and the customs declaration amount should be controlled within 5%. If the error exceeds 5%, a difference explanation should be submitted to the bank to avoid the fund being frozen. **status:** suggested **Author:** Cindy Chen **Date:** 2026-05-03 ### Answer 6 When importing O-rings through an agent, the node of goods ownership transfer should be clearly specified in the agency contract. It is recommended to agree that "after the goods are loaded on board and the on-board bill of lading is issued, the ownership of the goods is transferred from the supplier to the entrusting party", so as to avoid the goods being sealed up due to the debt problems of the agency company. At the same time, the guarantee content of the force majeure clause should be added to clarify that if the goods are detained at the port due to force majeure factors such as customs policy adjustment and port strike, the agent only needs to bear the responsibility of assistance and coordination, and does not need to compensate for additional losses such as port detention fees. In addition, the intellectual property rights of suppliers should be verified to avoid patent infringement of imported O-rings, which may lead to customs seizure of intellectual property rights. **status:** suggested **Author:** Michael Zhang **Date:** 2026-05-03 ### Answer 7 When agency imported O-rings encounter customs inspection, attention should be paid to the protection of sealing performance. If the customs requires devanning inspection, the on-site inspection personnel should be informed of the high-precision attribute of O-rings in advance to avoid deformation of the sealing surface caused by rough handling. At the same time, the original copy of the material test report should be carried with you. If the customs has doubts about the material of the O-ring, you can submit the report immediately for support without entering the sample testing process -- sample testing takes at least 7-10 days, which will incur about 2000 yuan of testing fees and high port detention fees. In addition, the authenticity of the container seal should be checked. If the seal is damaged, photos should be taken immediately and the shipping company should be notified to avoid being identified as stolen or exchanged goods. **status:** suggested **Author:** Daniel Xu **Date:** 2026-05-03 ### Answer 8 The packaging of agency imported high-precision O-rings should meet the transportation safety requirements. Fluororubber O-rings should be independently packaged in anti-static PE bags, and then placed in hard cartons with moisture-proof desiccant to avoid aging and deformation of O-rings caused by static electricity and moisture during transportation. At the same time, Chinese and English labels of "fragile, precision parts" should be marked on the outside of the packaging to remind logistics operators to handle with care. If shipping by sea, an additional waterproof film should be wrapped around the carton to prevent condensation in the container from wetting the goods. In addition, it is necessary to ensure that the shipping mark on the package is completely consistent with the shipping mark information on the customs declaration form, including the name of the goods, specifications, country of origin, etc., to avoid customs inspection caused by inconsistent shipping marks. **status:** suggested **Author:** Andy Guo **Date:** 2026-05-03 ### Answer 9 The document management of agency imported O-rings should be implemented in accordance with the compliance standards for export tax rebates. Documents such as customs declaration forms, commercial invoices, certificates of origin, material test reports, and logistics bills of lading should be electronically archived, and paper versions should be kept for at least 5 years to meet the retrospective verification requirements of customs and tax authorities. It is necessary to ensure the consistency of document flow, fund flow and goods flow, that is, the operating unit of the customs declaration form is consistent with the foreign exchange payment unit, and the actual flow of goods is consistent with the consignee unit of the customs declaration form. If the document is lost, you should immediately apply to the customs for reissuing the customs declaration certificate page. The reissuing process takes about 10-15 days, and you need to reserve time in advance to avoid affecting the subsequent input deduction. **status:** suggested **Author:** Lucas Liu **Date:** 2026-05-03 ### Answer 10 The supply chain planning of agency imported O-rings should be combined with inventory strategy to optimize costs. It is recommended to adopt the "small-batch and multi-frequency" import mode. If an enterprise needs to import 10,000 O-rings per month, it can import them in 4 batches, 2500 pieces per batch. This can not only reduce the capital occupation cost, but also avoid inventory overstock caused by changes in market demand. At the same time, a long-term import framework agreement can be signed with the agency company to obtain a 1%-3% discount on sea freight and customs declaration fees. In addition, the import cycle should be synchronized with the production plan to ensure that the time interval between the arrival of goods at the port and the replenishment time of the production line does not exceed 3 days, so as to avoid production line shutdown caused by stock shortage. **status:** suggested **Author:** Grace Wang **Date:** 2026-05-03 ## Related Categories - [Export Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-agency/) - [Export Tax Rebate Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-tax-rebate/) - [Customs Declaration Q&A](https://www.sh-zhongshen.com/en/qa/cat-customs-declaration/) - [Freight Forwarding Q&A](https://www.sh-zhongshen.com/en/qa/cat-freight-forwarding/) - [Forex Settlement Q&A](https://www.sh-zhongshen.com/en/qa/cat-forex-settlement/) - [Entrepôt Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-entrepot-trade/) - [General Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-general-trade/) ## Related Resources - [Trade Services](https://www.sh-zhongshen.com/en/services/) - [Trade Cases](https://www.sh-zhongshen.com/en/cases/) - [Trade Wiki](https://www.sh-zhongshen.com/en/wiki/) - [Trade Class](https://www.sh-zhongshen.com/en/guide/) - [Global Trade Services](https://www.sh-zhongshen.com/en/country/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "inLanguage":"en", "isPartOf": { "@id":"https://www.sh-zhongshen.com/en/#website" }, "publisher":{ "@id":"https://www.sh-zhongshen.com/en/#organization" }, "mainEntity": { "@type": "Question", "name": "What are the core points of full-process compliant operation for agency import of high-precision industrial O-rings?", "text": "I am the purchasing manager of a hydraulic equipment manufacturing factory in Suzhou. Last month, I was in urgent need of replenishing production line accessories, so I found a small agency to import a batch of high-precision high-pressure resistant fluororubber O-rings made in Germany. However, because the agent missed the review of the Certificate of Origin and material test report, the goods were directly seized after arriving at the port. I not only spent more than 20,000 yuan on port detention fees and document amendment fees, but also delayed the customer's order delivery deadline, was severely criticized by the boss, and am still writing a self-criticism now. I need to import another batch of O-rings of the same model this month, and the budget is very tight. I am afraid of customs seizure and port detention again, and also want to reduce import costs as much as possible. I would like to ask how to import O-rings compliantly through professional agents, what key details should be paid attention to in the whole process, how to avoid the risks last time, and whether there is a way to optimize costs?", "answerCount": 10, "upvoteCount": 3, "datePublished": "2026-05-03T05:14:10Z", "dateModified": "2026-05-03T05:15:53Z", "author": { "@type": "Person", "name": "Zhongshen Trading China", "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "The first part is the details of preliminary document review. It is necessary to focus on checking the format compliance of the Certificate of Origin ，the CNAS qualification accreditation of the material test report，and the accuracy of HS code classification of O-rings -- the HS code corresponding to fluororubber O-rings should be accurately classified as 40169310. If it is mistakenly classified as ordinary rubber ring，it will directly trigger customs valuation query. At the same time，it is necessary to confirm in advance whether the commercial invoice provided by the supplier clearly indicates the core parameters such as O-ring specification，pressure rating and temperature resistance range，so as to avoid customs seizure caused by incomplete document information. In terms of core node connection，the time difference between customs declaration，inspection and logistics transportation should be compressed to within 48 hours，and pre-declaration should be completed 3 days before the arrival of the goods to ensure 100% matching between manifest information and customs declaration form. If shipping by sea is selected，the authority to extend the free storage period of the shipping company should be locked in advance to avoid additional port detention fees caused by customs declaration delays. Emergency plans should be deployed in advance: in case of customs inspection，the original scanned copy of the material test report and the product specification issued by the supplier should be provided as soon as possible，and a exclusive on-site inspection coordinator should be arranged to follow up，so as to avoid damage to the sealing performance of O-rings caused by devanning operations. In case of HS code dispute，the pre-classification review process should be launched immediately，and the classification opinion should be issued quickly relying on the customs classification specialist resources of the agency company. In the final compliance implementation stage，the filing of input deduction of import value-added tax should be completed simultaneously to ensure the consistency of document flow，fund flow and goods flow，so as to avoid subsequent tax inspection risks. At the same time，all documents should be kept for at least 5 years to meet the requirements of customs retrospective verification.", "upvoteCount": 3, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#acceptedAnswer", "datePublished": "2026-05-03T06:41:00Z", "author": {"@type": "Person","name": "Eric Zhou","url": "https://www.sh-zhongshen.com/en/team/eric-zhou/"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "When importing O-rings through an agent, the accurate classification of HS code is the core of customs declaration compliance. Fluororubber O-rings should be classified as 40169310. If they are mistakenly classified as ordinary rubber rings (40169990), it will not only lead to tariff rate difference (the former has a tariff of 8%, the latter 10%), but also trigger customs valuation query. If the customs determines that the classification is wrong, it will require the deletion and re-submission of the declaration form, resulting in a document amendment fee of at least 1500 yuan, and the port detention time of the goods will be extended by 3-5 days, and the port detention fee is calculated at 1200 yuan per container per day. In addition, the original factory purchase contract and foreign exchange payment voucher of O-rings should be prepared in advance. If the customs initiates a valuation query, complete price supporting materials can be submitted within 3 working days to avoid entering the price negotiation process and delaying customs clearance.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-2", "datePublished": "2026-05-03T06:30:45Z", "author": {"@type": "Person","name": "Jason Wu","url": "https://www.sh-zhongshen.com/en/team/jason-wu/"} } , { "@type": "Answer", "text": "When importing O-rings through an agent, the logistics route should be selected according to the priority of the goods. For high-precision industrial O-rings, it is recommended to choose direct shipping routes instead of transshipment routes. Although transshipment routes can save 10%-15% of sea freight, the devanning and storage links of goods at the transshipment port are likely to cause impurities on the sealing surface of O-rings, affecting product performance. At the same time, the endorsement rules of the bill of lading should be confirmed in advance. If it is a straight bill of lading, it is necessary to ensure that the consignee is consistent with the operating unit on the customs declaration form; if it is an order bill of lading, the official seal of the agency company should be affixed on the back of the bill of lading and marked "to order". In addition, a demurrage reduction agreement should be signed with the shipping company, which can extend the free storage period from 7 days to 14 days, effectively reducing the risk of port detention.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-3", "datePublished": "2026-05-03T06:19:44Z", "author": {"@type": "Person","name": "Kevin Lin","url": "https://www.sh-zhongshen.com/en/team/kevin-lin/"} } , { "@type": "Answer", "text": "Costs can be optimized for agency imported O-rings through the VAT deferment policy. Eligible enterprises can choose to defer the payment of value-added tax when making import declarations. They do not need to pay import value-added tax immediately when the goods are cleared, but declare and pay uniformly in the value-added tax declaration period of the next month. This operation can revitalize the working capital of enterprises. For O-rings with an import batch value of 1 million yuan, it can save about 130,000 yuan of immediate capital occupation cost. At the same time, it is necessary to ensure that the imported goods are directly related to the production and operation of the enterprise. If they are used in R&D links, you can apply for full deduction of input tax of value-added tax in the import link. In addition, attention should be paid to the rationality of related party transaction pricing to avoid anti-tax avoidance investigation by tax authorities caused by excessive transfer pricing.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-4", "datePublished": "2026-05-03T06:11:32Z", "author": {"@type": "Person","name": "Evelyn Li","url": "https://www.sh-zhongshen.com/en/team/evelyn-li/"} } , { "@type": "Answer", "text": "The payment and receipt of foreign exchange for agency imported O-rings should strictly follow the compliance requirements. If cross-border RMB payment is adopted, the transfer should be completed through the CIPS system to ensure that the transaction note in the SWIFT message (or CIPS message) accurately indicates "payment for imported high-precision industrial O-rings", so as to avoid triggering the compliance review of the bank due to vague notes. If paying foreign exchange from an offshore account, supporting materials such as customs declaration form and commercial invoice should be provided to the bank in advance to prove the authenticity of the fund use. In addition, the error between the single foreign exchange payment amount and the customs declaration amount should be controlled within 5%. If the error exceeds 5%, a difference explanation should be submitted to the bank to avoid the fund being frozen.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-5", "datePublished": "2026-05-03T06:07:27Z", "author": {"@type": "Person","name": "Cindy Chen","url": "https://www.sh-zhongshen.com/en/team/cindy-chen/"} } , { "@type": "Answer", "text": "When importing O-rings through an agent, the node of goods ownership transfer should be clearly specified in the agency contract. It is recommended to agree that "after the goods are loaded on board and the on-board bill of lading is issued, the ownership of the goods is transferred from the supplier to the entrusting party", so as to avoid the goods being sealed up due to the debt problems of the agency company. At the same time, the guarantee content of the force majeure clause should be added to clarify that if the goods are detained at the port due to force majeure factors such as customs policy adjustment and port strike, the agent only needs to bear the responsibility of assistance and coordination, and does not need to compensate for additional losses such as port detention fees. In addition, the intellectual property rights of suppliers should be verified to avoid patent infringement of imported O-rings, which may lead to customs seizure of intellectual property rights.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-6", "datePublished": "2026-05-03T05:53:29Z", "author": {"@type": "Person","name": "Michael Zhang","url": "https://www.sh-zhongshen.com/en/team/michael-zhang/"} } , { "@type": "Answer", "text": "When agency imported O-rings encounter customs inspection, attention should be paid to the protection of sealing performance. If the customs requires devanning inspection, the on-site inspection personnel should be informed of the high-precision attribute of O-rings in advance to avoid deformation of the sealing surface caused by rough handling. At the same time, the original copy of the material test report should be carried with you. If the customs has doubts about the material of the O-ring, you can submit the report immediately for support without entering the sample testing process -- sample testing takes at least 7-10 days, which will incur about 2000 yuan of testing fees and high port detention fees. In addition, the authenticity of the container seal should be checked. If the seal is damaged, photos should be taken immediately and the shipping company should be notified to avoid being identified as stolen or exchanged goods.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-7", "datePublished": "2026-05-03T05:44:46Z", "author": {"@type": "Person","name": "Daniel Xu","url": "https://www.sh-zhongshen.com/en/team/daniel-xu/"} } , { "@type": "Answer", "text": "The packaging of agency imported high-precision O-rings should meet the transportation safety requirements. Fluororubber O-rings should be independently packaged in anti-static PE bags, and then placed in hard cartons with moisture-proof desiccant to avoid aging and deformation of O-rings caused by static electricity and moisture during transportation. At the same time, Chinese and English labels of "fragile, precision parts" should be marked on the outside of the packaging to remind logistics operators to handle with care. If shipping by sea, an additional waterproof film should be wrapped around the carton to prevent condensation in the container from wetting the goods. In addition, it is necessary to ensure that the shipping mark on the package is completely consistent with the shipping mark information on the customs declaration form, including the name of the goods, specifications, country of origin, etc., to avoid customs inspection caused by inconsistent shipping marks.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-8", "datePublished": "2026-05-03T05:36:15Z", "author": {"@type": "Person","name": "Andy Guo","url": "https://www.sh-zhongshen.com/en/team/andy-guo/"} } , { "@type": "Answer", "text": "The document management of agency imported O-rings should be implemented in accordance with the compliance standards for export tax rebates. Documents such as customs declaration forms, commercial invoices, certificates of origin, material test reports, and logistics bills of lading should be electronically archived, and paper versions should be kept for at least 5 years to meet the retrospective verification requirements of customs and tax authorities. It is necessary to ensure the consistency of document flow, fund flow and goods flow, that is, the operating unit of the customs declaration form is consistent with the foreign exchange payment unit, and the actual flow of goods is consistent with the consignee unit of the customs declaration form. If the document is lost, you should immediately apply to the customs for reissuing the customs declaration certificate page. The reissuing process takes about 10-15 days, and you need to reserve time in advance to avoid affecting the subsequent input deduction.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-9", "datePublished": "2026-05-03T05:30:32Z", "author": {"@type": "Person","name": "Lucas Liu","url": "https://www.sh-zhongshen.com/en/team/lucas-liu/"} } , { "@type": "Answer", "text": "The supply chain planning of agency imported O-rings should be combined with inventory strategy to optimize costs. It is recommended to adopt the "small-batch and multi-frequency" import mode. If an enterprise needs to import 10,000 O-rings per month, it can import them in 4 batches, 2500 pieces per batch. This can not only reduce the capital occupation cost, but also avoid inventory overstock caused by changes in market demand. At the same time, a long-term import framework agreement can be signed with the agency company to obtain a 1%-3% discount on sea freight and customs declaration fees. In addition, the import cycle should be synchronized with the production plan to ensure that the time interval between the arrival of goods at the port and the replenishment time of the production line does not exceed 3 days, so as to avoid production line shutdown caused by stock shortage.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/key-compliance-points-for-full-process-of-importing-high-precision-industrial-o-rings-via-agent.html#suggestedAnswer-10", "datePublished": "2026-05-03T05:15:53Z", "author": {"@type": "Person","name": "Grace Wang","url": "https://www.sh-zhongshen.com/en/team/grace-wang/"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.sh-zhongshen.com/en/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.sh-zhongshen.com/en/qa/"},{"@type": "ListItem", "position": 3, "name": "Import Agency Q&A", "item": "https://www.sh-zhongshen.com/en/qa/cat-import-agency/"} ,{"@type": "ListItem", "position": 4, "name": "What are the core points of full-process compliant operation for agency import of high-precision industrial O-rings?"} ] } ] ```