1)Name:good quality double union ball valve 2)Materials: PVC-U,PVC-C,PP,PP-H ... "~10" 4)Certificate: CE,ISO9001:2008 good quality double union ball valveMaterials: PVC-U,PVC-C,PP,PP-H,PVDFSizes: 3 ... ; JIS;ANSI;BSHigh quality,Clear, light weight, rustless, oxidation-resistant, anti-corrosion and environment-friendlyIt is widely used in chemistry, electron ...