laser cutting machine-aluminium alloy Standard marking scope:300mm*300mm(optical) Marking depth: 3mm Min. ... and machanical distortion,perfect design effect,easy to cut metal,alloy steelcontrolled by computer,easy to operateApplication:YAG laser cutting machine ... metal and non-metal,such as stainless steel,carbon steel,alloy steel,spring steel,copper plate,aluminium plate,other metal plates ...