... laser tubes working together. 2.save time and tube cost 3,run-through body design 4,CE,FDA Double-head Laser ... engraving machine RJ1612RJ Laser Engraving and Cutting Machine ... , bamboo, acrylic, organic glass, crystal, plastic,double-color board, marble, ceramic, glass, horn, paper ... engraving laser tube and a high power cutting laser tube, this Double-head Laser Machine ...