1)Name:plastic pneumatic ball valves 2)Materials:PVC-U, ... CPVC,PP 3)Certificate:CE, ISO9001:2008 4)Standard:DIN,ANSI,CNS,JIS 1) Name: plastic ... pneumatic ball valves2) Materials: PVC-U,PVC-C,PP ... It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, treatment Sewage, engineering of Recycled water ...