1,20 year automatic welders production experience 2,Suitable especially for the boiler heat interchanger 3,Price has competive KHB12-80 Orbit tube/tube plate welding machinefunctionUsed for welding of flush, protruding, recessed tubes or welding behind the tube-plate.Applicable scopePipe diameter 12mm - 80mm carbon steel, alloy steel, stainless steel, aluminum, aluminum alloy, copper and copper ...