... Machine 1,4.5kw water cooled spindle 2,,Imported steel square guide rail 3,Water Pump 4,vaccum ... cast frame,aging treatment much solid and rigidity machine body.2.Import high speed rolling ball screw ... and high precision linear sideway.This makes machine with high precision,fast speed,long service time ... 4.Rotary attachment is optional,which enable the machine to engrave on colum work pieces like ...