Before production, helping you make sure the raw materials and components will meet your specifications and are available in quantities sufficient to meet the production schedule.

A visual check on the quality of components, materials, and finished products at the beginning of production against the client’s specification and submitted samples. The PPI thus permits timely corrections and improvements before the mass production is initiated any non-conformity is immediately reported so as to avoid delay in shipment. 

1.Check raw material;

2.Mainly see quantity;

3.Also check functional quality;

4.Identification of material is important;

5.Recommendation.