1)Name:pneumatic ball valve 2)Materials:PVC-U,CPVC,PP,PP-H,PVDF 3)Certificate:CE, ISO9001:2008 4)Standard:DIN,ANSI ... : pneumatic ball valve2) Materials: PVC-U,PVC-C,PP,PP-H,PVDF3) High quality,Clear, light weight, rustless, oxidation-resistant, anti ...