1.Name:high-strength screw 2.Materials:PVC-U,PVC- ... BS 4.Certificate:CE, ISO9001:2008 1)Name: high-strength screw2)Materials: PVC-C,PVC-U,PP-H, ... CNS; JIS;ANSI;BS5)Certificate: CE, ISO9001:20086)High quality,Clear, light weight, rustless, oxidation-resistant, anti ... -corrosion and environment-friendly7)It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, ...