... crystal, glass, wood, bamboo, oxhorn, figuline, marble, leather, cloth, and double color board, etc., and it is commonly used in industries ... , timekeeper and jewelry, and more.Equipment Performance:1. This double head laser engraver is equipped with a world-leading power ... . 2. With front and back running-through design, this double head laser engraver is applicable for processing extra-long workpieces ...