Drain Valve, HAVC Valve, Industrial Valve manufacturer / supplier in China, offering DN500 Pn10 Nodular Cast Iron Top Type Turbine Eccentric Half Ball Valve, Quick Open Angle Sludge/Mud Valve Diaphragm Gate Valves for Sewage Treatment Plant Water Company′s Sedimentation Tank, Stainless Steel Hah44X Rubber Flap Swing Check Valve for Efficient Flow Control and so on.