... Ballscrew 4.Imported Lens CM-YAG-500 CNC Metal Laser Cutting Machine Standard Features:1.Gantry structure,cast cross beam, the ... .2.Mechanical following cutting head from USA, cutting head nozzle locking ring touches the metal sheet materials surface, the cutting head can go ... to the height of the metal sheet, and it can achieve same focal cutting, The cutting head has high sensitivity, stable running ...