... 2.suitable for extra-long piceces 3.USB port, 4.high speed and accuracy 5.with CE,FDA Double Head Laser Engraver ... :Our double head laser engraver is applicable for a variety of materials and industries. Specifically speaking, this laser engraver is ... for engraving on nonmetallic materials like acrylic, PVC, rubber sheet, plastic, crystal, glass, wood, bamboo, oxhorn, figuline, marble, leather, cloth, ...