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,PP-H,PVDF3) High quality,Clear, light weight, rustless, oxidation-resistant, anti-corrosion and environment-friendly4) New attractive design5) All-plastic housing and with no metal parts on the outside6) Pre- ...