... 6mm 3.7P water cooling system Metal laser cutting machine Specification: Model number YAG-500-1325working area 2500×1300mmmachine ... steel, spring steel, Aluminum alloy, copper plate, Aluminum plate, gold, and silver, Titanium, other metal plates and metal pipes. ... steel, spring steel, Aluminum alloy, copper plate, Aluminum plate, gold, and silver, Titanium, other metal plates and metal pipes. ...