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Source control

1.

Quality control of raw and auxiliary materials

Improve the quality standards of major raw and auxiliary materials entering the factory.
Main raw materials such as serum, white oil and adjuvant are imported from abroad.

2.

Supplier selection and strict control

In accordance with the principles of “unified management, hierarchical classification, dynamic assessment, supporting for superiority and shifting out inferiority”, carry on strict screening, process monitoring, quantitative evaluation of suppliers, cultivation of excellent strategic suppliers, establishment of a stable raw material base, and realization of a win-win situation between the company and suppliers

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