Feed control：
●Require suppliers to provide incoming inspection reports
●Raw materials enter the factory area, and the technical department will take samples of 500ML for testing
●The technical department will test the raw materials according to the customer's requirements. After the test results are qualified, the goods can be put into the warehouse and unloaded.
Company testing equipment: gas chromatograph, moisture analyzer, acid-base titration, density meter, etc.
Test items: purity, moisture, boiling range, density, acidity, etc.
If special testing items are required, entrust relevant institutions in Shanghai to test
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