The flame torch is very convenient to use, and can be used for metal welding/pipe thawing/outdoor barbecue/cake baking/air conditioner refrigerator copper pipe processing / (singeing)/household maintenance and so on. Welding Instructions:With universal copper-aluminum flux-cored welding wire (not tin welding wire), it can be used for welding and repairing copper, aluminum, iron, stainless steel and other household metal products, but it is not suitable for welding cast iron, cast copper and other hard and thick castings., Weight: 2.02604818778 pounds, Manufacturer: Aisuoka