industry true union ball valve 1.Materials: PVC-U,PVC-C 2.Standard: DIN, ANSI 3.Certificate:CE, ISO9001:2008 4.Size:1/2"-4" industry true union ball valveMaterials: PVC-U,PVC-C,PP,PP-H,PVDFSizes: 1/2", 3/4", 1", 1+1/4", 1+1/2", 2", 2+1/2", 3", 4"High quality,Clear, light weight, rustless, oxidation-resistant, anti-corrosion and environment-friendlyIt is widely used in chemistry, electron, ...