... stepper driving system 3Graceful bed frame struct CJET CNC woodworking machine CJ-C1313 Technical Parameters: Features:1.Entire steel ... Optional automatic oil lubrication system, free maintenance.2.The machine bed is precisely processed mechanically, servo driving system of ... wood, marble, granite, organic board, high-density plate, acrylic, PVC and all kinds of characters, graphs, images, trademarks ...