Professional used on the laser machine, to engrave cylinder objects such as ... the engraving limit of 2-dimenision3. Big rotary device is used for model YH-G8050, YH-G9060, ... YH-G1490, YH-G1612, YH-G1616.4. Small rotary device is used for YH-G5030Applicable materials:Wood, paper, leather ... upgrading of self-developed English software.Samples Laser Machine Auxiliary Rotary Device for cylinder objects