... CHONGQING JINTERUI MACHINE is specializing in aluminum alloy die casting,metal stamping and precision cnc machining,new products designing & developing, ... plating, nickle plating, e-coating,oxidizing...4) producing scope:stamping, stretching, trimming , flanging, punching ,turning, welding,die-casting, milling…5) ... requests by email . Our factory: Our products: Our quality: auto metal stamping parts