Discover the Four In One Handheld Fiber Laser Welding Machine 800W Air Cooling, perfect for welding stainless steel, carbon steel, and aluminum. This compact, high-efficiency machine offers precision welding with a 1070NM wavelength and 800W output power. Ideal for complex workpieces, it features air cooling, 8m fiber length, and a long module life of over 100,000 hours.