... two heads with two rotary Cylinder engraving machine SH-1830 Machine features: 1) Particular style, ... as rotary engraving on patterns, characters, relief. Materials related to aluminum sculpture, steel, plastic, timber. Technical parameter: ModelSH-1830Machine body ... system(nozzle, water pump) for tool when engraving stone cylinder, metal cylinder, etc. we can also design and produce machine according ...