... spindle, low noise, more powerful6.Linear round guide rail for X Y Z-axis, higher precision and longer life time7. Function of ... : duct collector, helping to suck the dust, milling dust, rotary axis for cylindrical materials, DSP offline control system, when working no need ... forth axis in this machine, (and using this could engraving the circular materials)Sample:Warranty:1. one year for the whole ...