Technical norms

2, Every order, after mixing, we must test by lab according to our factory standard which is higher than the state standard at the same area. only qualified can go on to next step.
3, Every order, after valcanizing. we test by the diameter the customer give, 
4, The final examination test by lab according to the customer reqirement, and keep the test report file,
5, The exam team must chest the packing, the belt outward appearance, etc etc , then the belt out of factory.

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