Does factory final QC perform internal mechanical tests to ensure the safety of product?

工厂最终检验QC有没有做一些机械测试以确保产品的安全性?。

youdao

Does factory final QC perform internal mechanical tests to ensure the safety of product?

工厂最终检验QC有没有做一些机械测试以确保产品的安全性?。

youdao