... stepper motor 3.With rotary 4.OEM,CE,ISO9001 SD-1313Y column cnc router,3D cnc engraving machine for column/cylinder Scope of application1.stone crafts,relief ... aluminum, iron and other metal molds, as well as artificial marble, sand, plastic sheeting, PVC pipe, wooden planks and other ... .Standard feature1.The axis adopt linear guide,which runs smooth and has high precision.2.The machine is of steel ...