... copper,aluminlum and silver,which overcomes the difficulty of welding different metalslike copper and aluminum,etc.Firm and beautiful ... weld:firm welding,no black on welding spot,no grinding needed,especially suitable for ... appliances,tableware and cookware,etc. ModelJY-C-2KJY-C-3KJY-C-5KJY-C-7KJY-C-10KJY-C-15KMethodSpotSpot/ProjectionInputVolt/Phase220/1Φ220/1Φ220 ...