Quality Inspection 

1. What quality inspection processes do you use?

Our quality control covers incoming materials, production processes and final products. Typical checks include material verification, dimensions, thread quality, appearance, hardness, tensile performance, torque and surface treatment, depending on the product requirements.

2. What tests can you perform?

Testing may include dimensional inspection, visual inspection, thread gauge testing, hardness testing, torque testing, tensile testing and salt spray testing for suitable surface treatments. The inspection plan can be agreed according to the product standard and application.

3. Do you have an in-house testing laboratory?

Yes. Our in-house laboratory is equipped for inspection and testing activities including coordinate measurement, hardness testing, salt spray testing, torque testing, thread gauging, XRF material analysis and coating thickness measurement.

4. How do you inspect incoming raw materials?

Incoming materials are checked against the required documentation and specifications. Depending on the order, checks may include material test report verification, chemical composition, mechanical properties and surface condition. Non-conforming materials are rejected or handled through an agreed corrective process.

27. Do you perform in-process inspections?

Yes. We perform inspections at relevant production stages, which may include cutting, machining, heat treatment and surface treatment. In-process inspection helps identify deviations early and reduce the risk of non-conforming products reaching the next stage.

5. What certifications and compliance documents can you provide?

Our quality management system is certified to ISO 9001:2015. Depending on the product and market, we can provide relevant documents such as CE, RoHS, REACH, Certificate of Conformity and material documentation when applicable.

6. Can you provide Material Test Reports?

Yes. English Material Test Reports can be provided for applicable shipments. MTRs may cover chemical composition, mechanical properties and material traceability, including EN 10204 3.1 documentation when required by the order.

7. Can you arrange third-party inspection and PPAP documentation?

Yes. We can coordinate third-party inspections by institutions such as SGS, BV, TÜV or Intertek when requested. For automotive and high-specification industrial projects, we mainly support PPAP Level 3 documentation, with other levels discussed according to customer requirements.

Request a Quotation

Still have questions or need a custom quote?

Send us your product drawings or samples, along with details such as material, dimensions, quantity, surface finish, packaging requirements, and destination port. Our team will review your requirements and get back to you with a tailored quotation.

Email us at: info@cngoshen.com