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Ningbo Shuaide Automotive Co.,Ltd. Quality Control

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QC Profile

One Senior Engineer, Two Engineers, 4 QC, 100% Leak Test


Quality Control


Step 1

All our products is checking following GB/1796.3-2008 by our inspectors during the production. This first step is after the rubber press machine put the rubber and stem together. Our inspector check whether has the rubber plug the hole or extra the stem, if have, we will take them out.


Step 2

This second step testing is very important. We test 100%.We put the tire valves in water sink keeping 60 seconds in 8 kgs pressure. If we found the air is bubble, then we will take them out. Through this way, not only the quick air leak, but also the slow air leak can be tested.


Step 3

During the each production, which we are sampling the each rubber set to test before bulk production. The hardness we control in 65±5 Shore A


Step 4

This progress is also important. This is pull in and out force power testing. We control this progress very serious. Each production before bulk production, we make the testing. We control the Pull on power:180-450N,Pull off power:>600N


Ozone resistance 


Ningbo Shuaide Automotive Co.,Ltd.


Leak Test

Ningbo Shuaide Automotive Co.,Ltd.


Tensile test

Ningbo Shuaide Automotive Co.,Ltd.

  • Ningbo Shuaide Automotive Co.,Ltd.



    Issue Date:2019-04-18

    Expiry Date:2022-04-17

    Scope/Range:Production of tire valves

    Issued By:ANAB/ IAF

Contact Details
Ningbo Shuaide Automotive Co.,Ltd.

Contact Person: Ms. Email Wong

Tel: +86 574 6298 2595

Fax: 86-574-62982595

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