We professionally manufacture instrument valves and fittings, including tube fittings, pipe fittings, weld fittings, needle valves, instrument ball valves, check valves, relief valves, valve manifolds and so on.widely used in many fluid system for industries of oil and gas, chemical, petrochemical, power, shipbuilding, machinery, analytical instrumentation and etc.Sweden Tornos, Japanese LG Mazak machines and Mazak machining center, Mitutoyo surface roughness tester, English X-MET5000 spectrometer, Rockwell hardness tester, and introduced foreign advanced pressure testing machines which whole testing process is computer-controlled.