... system certificate:ISO9001:2008 Type: Mould Products Stamping die mould Dongguan Richhong metal Co. Ltd has long ... welding, forming, shaping, punching, drilling, turning, milling, grinding, chip formatting, rolling, stamping, deep drawing, bending, spot or seam ... welding, spinning, forging, sand casting, die casting, investment casting, etc.Surface treatmentPolishing, zinc plating, nickel ...