Coupling, Valve Parts, Pump Parts manufacturer / supplier in China, offering Factory Direct Sale Seawater Desalination Anti-Corrosion Nylon Low Pressure 300psi 2.5 Inch 73mm Grooved Couplings, Inexpensive Durable Plastic Low Pressure 300psi Nylon Pipe Repair Clamp Fitting for Seawater Desalination, Durable Full Size 323.9mm/12-Inch Pipe Connector Joint High Pressure Grooved Coupling Clamp for Water and so on.