... 3,Price has competive KHB12-80 Orbit tube/tube plate welding machinefunctionUsed for welding of flush, protruding, ... welding behind the tube-plate.Applicable scopePipe diameter 12mm - 80mm carbon steel, alloy steel, stainless steel, aluminum, aluminum alloy ... , copper and copper alloy, titanium alloy, etcApplication1,KHB12-80 Orbit tube/tube plate welding ...