... Diode pumped laser marking machine adopts high-quality semi-conductor module, life time over 10k hours.2. Fast speed & no ... barcode, 2 -D code, etc. on metal or nonmetal surface (plastic, silicon or porcelain, etc.) which are precise, permanent, non-polluting ... with the international advanced semiconductor light-emitting diode. diode laser module, scanner head, beam expander, reflect lens, Q-switch, Q ...