1)Name:pneumatic ball valve 2)Materials:PVC-U,CPVC,PP,PP-H,PVDF 3) ... :2008 4)Standard:DIN,ANSI,CNS,JIS 1) Name: pneumatic ball valve2) Materials: PVC-U,PVC-C,PP,PP-H,PVDF3 ... ) It is widely used in chemistry, electron, metallurgy, plastic, electroplate, irrigation, treatment Sewage, engineering of Recycled water, Aquatic Culture, civil using ...