... 4.laser tube 1500hours JK-3050 laser engraving machine Machine Performance: Laser-type: Hermetic and detached CO2 laser tube Laser-power: ... materials: wood, bamboo, jade, marble, organic glass, crystal, plastic, garments, paper, leather,textile, rubber, ceramic, ... and other nonmetal materials.Applicable industries: advertisement, arts and crafts, leather, toys, garments, model , building upholster, ...