... Nickel plating and chromate plating 3.ISO9001:2008 brass fittings for copper pipe 1. Product Introduction Item DescriptionNameCNC ... products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto-lathe turning precision part: ... ) Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug ...