... production experiences 4.Price has competitive KHGT Orbit tube to tube welding machineProduct applicationApplicable industriesPetrochemical, boiler, refrigeration, ... , atomic energy etcApplicable scopeApply to tube diameter from16mm-230mm tube – pipe,tube-elbow, the tube - flanges, carbon steel, alloy ... 1-1r/min0.07-0.5r/minWeldable tube diameter16-40mm36-90mm70-160mm140-230mmTungsten polar diameter1 ...