Quality Assurance
Raw material testing
The inspection items such as 105 ℃ volatile matter, sieve residue, oil absorption, weather resistance, color phase, coloring intensity, hygiene index, etc. have been set up, and the selection mechanism of survival of the fittest of raw materials has been established to control the quality.
Finished product inspection procedure
1. Process inspection: The product shall be put into production after the first on-site inspection, and the production can be continued only after it is qualified. The "time equidistant sampling method" shall be used for regular inspection to prevent unqualified products from entering the next link.
2. Final test: test and evaluate all indicators, and enter the market after passing the test.
