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 ... sets make maintenance safe and easy7) It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, treatment Sewage, engineering of ...