1,More attractive automatic design 2,20 year automatic welders production experience 2,Suitable especially for the boiler KHB12-80 Orbit tube/tube plate welding machinewelding headfunctionUsed 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 ...