Laser marking machine 1.Water cooling system 2.Diode pump laser 3.Mark on metal, plastic,rubber ... depth:0.01~0.2mm (according to material)Marking width:0.1-0.2mm (according to ... water or purified water.•Feature:1. Diode pumped laser marking machine adopts high-quality semi-conductor module, life time ... parts, telecommunications products, plastic buttons etc. Diode pump laser marking machine with CE