Diode Pump Laser Marker 1.Mark on all kinds of ... distilled water or purified water.·Feature:Diode pumped laser marking machine adopts high-quality semi-conductor module, life ... -D code, etc. on metal or nonmetal surface (plastic, silicon or porcelain, etc.) which are precise, permanent, ... , jewelry, glasses, auto parts, telecommunications products, plastic buttons etc. Diode Pump Laser Marking machine