... Laser Engraving DSP system, Imported optical assembling Casting Shell 360 slope engraving Wood Laser Engraving MachineSpecification:Model SF-450 Laser Wood ... of model, paper product and other industries. It can engrave on nonmetal materials such as bamboo, putamina of coconut, paper, ... and crystal. With the rotating unit, this machine can work on a cylinder object such as cup, pencil, vase and so ...