Hot Tapping Machine, Pipe Cutting Machine, Flange Adaptor manufacturer / supplier in China, offering 16′′-48′′ 6.4 Bar Hydraulic Hot Tapping Machine for Oil and Gas Pipeline Project, Hot Sales Gw Brand High Pressure Hydraulic Hot Tapping Machine for Hot Tapping Range 6"-16" for Oil and Gas Pipe, High-Performance Gwk500 Hydraulic Hot Tapping Machine Used for Oil and Gas Pipe and so on.