... 1.6Mpa--4.0Mpa 3.Material:Stainless Steel,Cast Steel Guang Type Ball Valve Main DimensionSpecificationNorminal Oressure 1.6-4.0MPaTemparature -20~232 ... . Now, we can provide with Ball Valve, Gate Valve, Globe Valve, Check Valve, Butterfly Valve, Slurry Valve, Feed Valve, Stop Valve and so on.They are produced ... fields Quality control Scientific research and technology Carbon steel Guang Type Ball Valve