Hot Tapping Machine, Pipe Cutting Machine, Flange Adaptor manufacturer / supplier in China, offering Tdw 36" Hydraulic ASME Class 600 Serrated RF Manual Sandwich Valve, High Pressure 1000psi Pipe Repair Clamps Bolt-on Split Repair Sleeve, Heavy-Duty Stainless Steel 3/4'' Grooved Coupling for 600psi Use and so on.