CGA320 CO2 cylinder valve,gas valve,valve,cylinder valve,CO2 valve,carbon dioxide valve Detailed Product Description CGA320 CO2 cylinder valve,gas valve,valve,cylinder valve,CO2 valve,carbon dioxide valveModelProduct NameMediumService Pressure(Mpa)Inside nominal diameter(mm)Outlet thread (mm)Temperature or pressure of safe apparatus(Mpa)Tread connected to cylinder(mm)CGA320flapper-type CO2 ...