... system certificate:ISO9001:2008 Type: Sheet-metal Product Custom made mould Dongguan Richhong metal Co. Ltd has long history in self ... drawing, bending, spot or seam welding, spinning, forging, sand casting, die casting, investment casting, etc.Surface treatmentPolishing, zinc plating, nickel plating, chrome plating ... offer 4 or 5 axis-CNC center processes. Custom made mould