... transmission 4.for metal welding lazer welderMetal Laser Welder for Steel,Stainless Steel,Aluminum,Alloy,CopperLaser welding ... disturbed by the phenomenon of melt back as arc welding.9.Laser welding is not affected ... by the magnetic field (arc welding and electron beam welding is easily to ... yoyo(at)goldenlaser.org Metal Laser Welder for Steel,Stainless Steel,Aluminum,Alloy,Copper