... wood block, bamboo product, acrylic sheet, glass, pvc shee Description:Laser Cutting Machine are many materials can be engraved, such as ... digits, high speed DSP for control system of the GS laser engraving machine. The processing Capability and stability is highly improved ... water flows in opposite direction, there'll be no laser, which protects the laser tube in an effective way. Engraving size: 900 ...