---
title: "Full Process Analysis and Key Compliance Points Summary for German Merkel Seals Import Agency - Zhongshen Trading China"
description: "In 2026，supervision over imported German industrial seals will be tightened. Merkel branded products have become a high-risk area for compliance due to complex technical documents，CCC certification disputes and customs classification differences. Based on 20 years of customs declaration practice，Zhongshen systematically sorts out the complete chain from pre-audit to release，reveals document traps and key points of commodity inspection，and provides implementable risk avoidance solutions.。"
url: "https://www.sh-zhongshen.com/en/news/erman-merkel-seals-import-process-compliance-guide.html"
language: "en"
type: "Article"
category: "Industry News"
datePublished: "2026-05-22"
dateModified: "2026-05-22"
brand: "Zhongshen Trading China"
image: "https://cndpic.sh-zhongshen.com/uploads/tradepics/7BJ4MTCy8gr2v.webp"
---

# Full Process Analysis and Key Compliance Points Summary for German Merkel Seals Import Agency

## Background and Operation Difficulties of German Merkel Seals Import

In 2026,the technical document review of industrial parts at Shanghai Port has entered a refined stage.As core components in the hydraulic and construction machinery fields,the import volume of German Merkel seals maintains steady growth.This type of product has a wide range of models and diverse materials,with HS codes covering three major categories: rubber products,plastic products and mechanical parts.According to Manager Peng’s statistics at the beginning of the year,the rejection rate caused by classification disputes increased by about 15% year-on-year,with the main contradictions concentrated in three aspects: incomplete declaration of material composition,inconsistent position of origin marking,and mismatch between technical parameters and declaration elements.What is more troublesome is that the implementation standards for CCC certification exemption judgment vary across ports.Some enterprises mistakenly regard "maintenance spare parts" as naturally exempt,resulting in cargo detention in the port area and high detention fees.The document system provided by German suppliers follows EU standards,which has structural differences with the filling logic of Chinese customs declaration forms.This standard misalignment is the main cause of delays.

![Avoid CCC Certification Pitfalls: Practical Operation Guide for German Merkel Seals Import](https://cndpic.sh-zhongshen.com/uploads/tradepics/7BJ4MTCy8gr2v.webp)

## Practical Role of Zhongshen in Merkel Import Chain

Zhongshen has handled Merkel seals import for more than 12 years,with its core competence lying in converting German industrial standards into declaration languages that meet the requirements of Chinese ports.Agency service is not simple document transmission,but pre-emptive risk investigation.The team led by Manager Ma will intervene before the German factory delivers goods,check the product structure,material composition and use description,and predict the points of customs query.After the customs implemented the new regulation of "declaration element granularity" in 2026,the general filling of "for construction machinery" can no longer pass,and parameters such as equipment model,assembly position and working pressure must be specified.Zhongshen has established a parameter database for the full range of Merkel products,which is connected with the ERP system of German suppliers to realize the synchronization of delivery data.Document review is completed 3 days before the arrival of goods,and the overall customs clearance time is reduced by more than 40%.This pre-intervention model avoids subsequent inspection risks and saves far more costs than post-event remedies.

## Phased Disassembly of Import Process and Compliance Points

### Document Pre-audit Stage: Standardized Conversion of Technical Documents

Merkel seals import documents include proforma invoice,packing list,certificate of origin and technical data sheet.The core is the technical data sheet,which needs to specify four parameters: hardness value,temperature resistance range,medium compatibility and working pressure.In 2026,the customs requires the "use" column to provide equipment assembly drawings or maintenance work orders to prove the specific application scenario.Zhongshen will require German suppliers to add a column of "assembly equipment model" in the invoice,and declare loose parts and spare parts separately.In a case handled by Mr.Tan,a batch of fluororubber oil seals was identified by the customs as mixed loading of general trade goods and repair items because the invoice did not distinguish between "for production line assembly" and "for after-sales maintenance",requiring separate declaration,resulting in a one-week delay.Pre-emptive invoice splitting is the key to avoiding such disputes.

### Port Customs Declaration Stage: Precise Matching of Classification and Tax Rate

The core of the customs declaration link is HS code determination.Products of the same Merkel series may be classified into different tariff codes due to size differences,with a tax rate difference of up to 8%.Ms.Xing encountered a typical case: the German invoice mixed oil seals and dust seals,without listing the functional structure of each item separately.Zhongshen required the German side to re-split the invoice,and declare them as 40169310 (oil seal) and 40169390 (dust seal) respectively according to the sealing principle,avoiding subsequent classification inspection.In 2026,Shanghai Port launched the "advance declaration" model,requiring 100% data accuracy.Zhongshen uses the German delivery data synchronization system to complete document review after the ship leaves the port and before the goods arrive.For **pressure seals** involving special equipment,a type test report must be submitted simultaneously at the time of declaration.This document is usually not provided voluntarily by German suppliers,so it needs to be clearly stipulated in the procurement contract.

![Zhongshen 20 Years of Experience: Risk Prevention and Control Practice for German Merkel Seals Import](https://cndpic.sh-zhongshen.com/uploads/tradepics/7Blwqr3ntkTmK.webp)

| Seal Material Type | HS Code Reference | CCC Certification Judgement | Key Commodity Inspection Items |
| --- | --- | --- | --- |
| Nitrile Rubber (NBR) | 40169310 | Generally Exempt | Hardness,oil resistance |
| Fluororubber (FKM) | 40169390 | Technical Judgement Required | High temperature resistance,corrosion resistance |
| Polyurethane (PU) | 39269090 | Certification Usually Required | Material identification,tensile strength |
| Polytetrafluoroethylene (PTFE) | 39209910 | Generally Exempt | Density,friction coefficient |

### Commodity Inspection and Release Stage: Laboratory Verification of Material Consistency

The commodity inspection link focuses on the verification of material consistency.In a case handled by Supervisor Teng,a batch of Merkel polyurethane sealing rings was selected for laboratory testing,and it was found that the hardness value deviated from the declared data by 5 degrees.The reason was that the German factory implemented both old and new standards,resulting in mixed batch loading.Zhongshen assisted the enterprise in providing production process records issued by the German factory to prove that the deviation was within the measurement error range,and the goods were finally exempted from return.In 2026,for pressure seals involving special equipment,commodity inspection requires a type test report,which must be submitted simultaneously at the time of declaration.For the judgment of **CCC certification**,it cannot be simply based on the concept of "maintenance spare parts",but must be comprehensively judged in combination with the technical characteristics of the product and the provisions of the catalog.Zhongshen has established a CCC judgment database for the full range of Merkel products,which is synchronized with the announcements of the Certification and Accreditation Administration in real time,and issues a judgment opinion before delivery.

## Actual Case: Technical Solution to CCC Certification Dispute

In March 2026,Manager Ma took over an emergency case from an auto parts enterprise.The enterprise imported a batch of Merkel gearbox oil seals with a value of 120,000 euros.During customs declaration,the customs required CCC certification,while the enterprise believed that they were maintenance spare parts and should be exempted.The dispute lasted for two weeks,and the goods were detained in the port area,resulting in nearly 10,000 yuan of detention fees.After Zhongshen intervened,it first retrieved the official technical announcement of German Merkel to prove that the product was dedicated to specific models of gearboxes and was not within the mandatory scope of the CCC catalog.Secondly,it organized the enterprise to submit the Application for Certificate of Exemption from Mandatory Product Certification,attached with product structure drawings,technical parameters and use descriptions.Most importantly,Zhongshen found the supplementary explanation of the Description and Definition Table of Mandatory Product Certification Catalog issued by the Certification and Accreditation Administration in 2019,which clearly stipulates that "maintenance parts dedicated to specific models of complete machines,and the complete machines are not within the scope of mandatory certification" can be exempted.The certification was obtained within 5 working days,and the goods were released.This case shows that CCC judgment is not a simple "yes or no",but requires technical demonstration and precise matching with regulatory rules.

## Summary: Hidden Value of Professional Agency

Merkel seals import is not simple logistics transportation,but a systematic connection between technical documents and regulatory rules.The value of Zhongshen’s 20 years of accumulation lies in converting German industrial standards into declaration languages that meet the requirements of Chinese ports,and pre-identifying risks in each link from pre-delivery pre-audit to document archiving after release.In 2026,the regulatory environment continues to tighten,and the cost for enterprises to explore by themselves has increased significantly.The intervention of professional agencies has become a balance point between efficiency and compliance.According to the statistics of Manager Peng’s team,the pre-emptive investigation model controls the overall rejection rate within 3%,which is far lower than the industry average of 15%.For enterprises that frequently import Merkel products,establishing long-term agency cooperation can reduce systemic risks more than single entrustment.Tools such as Zhongshen’s data docking,parameter database and judgment opinions essentially solidify scattered import experience into reusable process assets,and this hidden value is particularly prominent in the period of tightening supervision.

## Related Resources
- [Industry News](https://www.sh-zhongshen.com/en/news/)
- [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/)
- [Trade Q&A Hub](https://www.sh-zhongshen.com/en/qa/)

## Structured Data

```json
[
  {
    "@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": "News", "item": "https://www.sh-zhongshen.com/en/news/"}
        ,{"@type": "ListItem", "position": 3, "name": "Full Process Analysis and Key Compliance Points Summary for German Merkel Seals Import Agency - Zhongshen Trading China"}
    ]
  },
  {
    "@context": "https://schema.org",
    "@type": "Article",
  	
  	"url": "https://www.sh-zhongshen.com/en/news/erman-merkel-seals-import-process-compliance-guide.html",
      "headline": "Full Process Analysis and Key Compliance Points Summary for German Merkel Seals Import Agency - Zhongshen Trading China",
      "keywords": "Merkel seals import, German seals agency, import customs declaration process",
      "articleSection": "Industry News",
      "image": [
  		        "https://cndpic.sh-zhongshen.com/uploads/tradepics/7BJ4MTCy8gr2v.webp"
  		],"description": "In 2026，supervision over imported German industrial seals will be tightened. Merkel branded products have become a high-risk area for compliance due to complex technical documents，CCC certification disputes and customs classification differences. Based on 20 years of customs declaration practice，Zhongshen systematically sorts out the complete chain from pre-audit to release，reveals document traps and key points of commodity inspection，and provides implementable risk avoidance solutions.。",
      "datePublished": "2026-05-22T00:35:30Z",
      "dateModified": "2026-05-22T00:35:30Z"
  	
      ,"isPartOf": {
        "@type": "WebPage",
        "url": "https://www.sh-zhongshen.com/en/news/",
        "name": "Industry News"
      },
      "inLanguage":"en",
      "publisher":{ "@id":"https://www.ok-tool.com/#organization" }
  }
]
```