Our company produces 10 major series of products totaling 1,200 varieties and specifications of high temperature, high pressure, high wear resistant, and large-diameter ball valves, gate valves, butterfly valves, gate valves, globe valves, check valves, ore slurry valves, power station valves, as well as non-standard and special valves with auxiliary devices for petroleum, chemical industry, metallurgy, light industry, coal chemical industry, power station, urban construction, water supply, oil, gas and natural gas transportation, long transportation pipeline and other projects. Nominal diameter DN10~4500mm(1/2"~64"), nominal pressure 1.6MPa ~ 42Mpa(150Lb ~ 2,500Lb), working temperature -196℃ ~ 750℃. Valve materials: carbon steel, stainless steel, heat resistant alloy steel, Monel, low temperature steel, and other special types of steel. Driving modes include manual, electric, pneumatic, gear transmission, worm gear and worm transmission, pneumatic and hydraulic combined, electric a