... code and two-dimensional code marking. Using high-performance semiconductor laser, beam quality good, the optical mode better, and ... Min. Characters: >0.3 mm Orientation precision: 0.02mm semiconductor laser using life : 10,000 hoursPower supply: 220V10%/50HZ ... , spectacles, hardware, auto parts, telecommunications products, plastic buttons, integrated circuit(IC) etc. Diode-pump laser marking machine