Binzhou Zhiyuan how to control quality process

Binzhou Zhiyuan how to control quality process 

1)Purchasing
Thorough market research, understand the price of raw materials and performance.To the procurement source to understand fully, and fully guarantee the quality of the procurement of raw materials.
2) Inspection
Four steps: sampling, sample pretreatment, measuring and data processing.
3) Producing
a)Each operator must do self-inspection of products and make the corresponding inspection records.
b)Full-time inspectors through check the operator self-inspection, and review and sign in the corresponding record. Full-time inspection is responsible for inspection of finished product, and make the finished product incoming inspection records.
4) Before selling 
Test result can be provided before selling.
Third-party detection institution is allowed if you are not satisfied with test results.