cnc handheld fiber laser welding machine for 3mm stainless, aluminium welder good quality. 4)High power density after laser focus.When high power workpiece welding,depth ratio can be 5:1,tiptop can be up to 10:1. 5)Can be used for minisize weld. The laser beam is focused to a light, and make accurate positioning can be used in mass production, automated a small piece in. the group of welding 6)To be welded inaccessible areas, such a long distance welding, contact with flexibility.