... two heads with two rotary Cylinder engraving machine SH-1830 Machine features: 1) Particular style, competent ... bamboo products, acrylic plate, plastic, plexiglass, ceramic tile, marble, jade, crystal, shell and other non-metallic materials and a variety of ... cooling system(nozzle, water pump) for tool when engraving stone cylinder, metal cylinder, etc. we can also design and produce machine according ...