... -cooled spindle 3.500mm rotary axis 4.Hiwin linear square guideway 5.DSP offline Stone CNC Engraving Machine ZK- ... , bamboo, cambered surface, sphere, stainless steel, iron, copper, aluminium, titanium alloy, can doing 3D embossment, and line engraving, bevelling, drilling 2D ... 5.High precision rack transmission, fast speed.6. Imported linear square guide way, double row four row slider, high precision, ...