... Co., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto-lathe ... Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge and ... oversea clients A: we are a regular supplier of valve assemblies for an American company producing HVACs B: supply precision ...