... CO., Ltd.(2) Main products: CNC machining precision parts: valve accessory, brass tube fittings, elbow, tee, nut; Auto- ... jeweler accessories.(3) Main equipments: CNC lathe, Auto-lathe, meter lathe, pressing and forging machine, polishing equipment, etc.(4) ... Main inspection devices: digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge ...