... ballDimension standard: GB, ANSI, JISBody material: Carbon steel(WCB), Stainless steel(CF8, CF8M, CF3, CF3M)Seat material: PTFE ... reposition)Control: Switch , Adjust .Selection of Accessories: solenoid valve, locator, limit switch, F.R..L. Combination unit ... standard.7.All fasteners are made of stainless steel ,to enable long-term corrosion resistance.8 ... DIN3337(F03-F25). pneumatic 3PC welding ball valve