The fifth part is the our country civil case qualitycertificatesystem of perfect.
第五部分，是我国民事质证制度的完善。
2
Our professional and careful attitude as well as the integrated qualitycertificatesystem wins us credit from customers.
精细、专业的态度，完善的质量认证体系，赢得了客户的信赖。
3
Double qualitycertificatesystem (whole vehicle qualitycertificate and chassis quality certificate) shall be practiced with respect to the products manufactured by vehicle conversion plants.