Handheld laser soldering machine can be used for welding stainless steel, carbon steel, copper, aluminum, gold, chromium, silver, titanium, nickel and other metals or alloys, it can also be used for a variety of welding between different materials, including copper -,brass, ti- tanium - molybdenum, titanium - gold, nickel - copper, and so on, Handheld laser soldering machine is widely used in the kitchen cabinets, staircase eleva- tor, shelf, oven, stainless steel door, window guardrail, distribution box, medical equipment, communications equipment, battery manufacturing, craft gifts, household and other indus- tries.