Product application & ensure fittings for air and liquid connections.Automobile, engineering Machinery, Lathe, Machinery, Metallurgy, Petroleum, mine, construction, chemical industry, shipbuilding, spacecraft, military, Textile, Ocean,Recreation, Electronics and many other fields related with hydraulic and their delivery system of fluid and gas high Quality Standards As an ISO 9001 certificated manufactory, we ensure that our design and manufacturing processes are the highest quality by maintaining proper certification and in-house inspections. Under the requirement of ISO, we have a rotating gage calibration schedule to make sure the dimensions of each fitting component is 100% accurate based on specified measurements. We have a professional quality inspection team. Individually trained employees control the manufacturing process with strict statistical analysis and control. We can ensure that each identical fitting component you order is true to the design specifications. Our tube fittings ensure:  1)safe, reliable and leak-proof connection;  2)Easy to install, disconnect and retighten;  3)No torque is transmitted to tubing during installation