Overview: The Department of quick connectors are based on actual use of domestic situation and the development of a new generation of welding and cutting (knife) torch anti-reverse quick connector, to all types of welding and cutting torch with supporting the use, can be installed directly on the welding torch inlet, and with the company can produce welding cutting equipment supporting the use of special quick connector, but also with imported equipment. With a compact, easy to install, small, spool flexible, lightweight flexible, safe and reliable. Check valves (gas check valve) during tempering can instantly cut off the gas source, the explosion welding process prevents backfire because that might arise. At the junction of the joint design of a top open valve, has fitted together the evacuation turned off function, continuous operation can be automatically reset to make the job more convenient and safe.