... hard material.The machine can engrave letters and relief designs. JD-6060 high quality 23.6X23.6 inch CNC metal engraving machine ... than ordinary rails. Its precision keeps high even with long time use.Uses high speed drive motor. Its speed is ... engraving, dials.l Mould industry: architecture, Gilt membrane, electric machinery, High frequency mold, moulding on shoes, badge, embossed mould, biscuit, ...