ez letter laser welding machine is special designed to weld stainless steel and galvanized steel, which have the advantage below: 1.welding point sight locating function: can find the rough position of the weld work piece by glow indicate quickly,then perfect alignment the welding position by multiple enlarged binocular microcrope.this positioning system can make workers easier and quicker to complete the work. 2.electrical control of the multiple beam expander,means the control the size of facula.