... Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto-lathe turning precision ... Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge ... SGS, UKAS CN08/10102 Scope: Manufacture of metal valve fittings, pipe fittings and mobile nuts 2011/01/29 --- 2014/01/29 ...