Hot Tapping Machine, Pipe Cutting Machine, Flange Adaptor manufacturer / supplier in China, offering Hot Tapping Size 6′′-16′′ Automatic Feeding Hydraulic Hot Tapping Machine, 14′′-56′′ 10.0 MPa Automatic Feeding Hydraulic Tdw Hot Tapping Machine, 4.0MPa Hydraulic Hot Tapping Machine for Oil and Gas Pipeline Project and so on.