... pipe copper tub brazing machine welding machine soldering machine 1. metal tube welding: such as copper tube, steel ... tube, and aluminum tube’s butt welding, plug welding and welding sets.2. alloy cutter welding: such as alloy turning, milling ... welding: diamond saw blade welding, marble saw blade welding,woodworking saw blade welding, cut grass piece of welding, cut aluminum welding,4. metal welding ...