We control quality from the production process, after the production process, three times before packaging, and strictly guarantee product quality.
 
During the production process, we conduct random inspections in time. Once a product is found to be unqualified, it is immediately stopped to find out the reason and the same batch of products is completely screened.
 
After production, we use screening equipment for secondary screening of gaskets.
 
Before packing, we used manual third screening.