... double head CO2 laser machine 2.suitable for extra-long piceces 3.USB port, 4.high speed and accuracy 5.with CE,FDA Double ... jewelry, and more.Equipment Performance:1. This double head laser engraver is equipped with a world-leading power control system and an ... reliable in performance and precision. 2. With front and back running-through design, this double head laser engraver is applicable for ...