Threaded union refers threaded pipe fittings, industrial and life of the most common form of pipe fittings, threaded pipe union make connections easier, and easier removal of the replacement, saving the cost of the pipe connections . With threaded union general industrial metal fabrication, high pressure, materials are carbon steel, stainless steel, alloy steel, brass; threaded union material life generally used PC, PVC, PE and so on. 1, high thread union strength, ductility, give full play to the base metal reinforcement strength and ductility. ? Joint performance to JGJ107-2003 in Class I standard connectors and can be broken at the base metal. 2, the connection convenient, fast and easy to operate. 3, the detection easy and intuitive. 4, can be prefabricated steel processing straight thread sleeve can be factory production, not accounting period,? High processing efficiency. 5, the construction connection no electricity, no gas, no flame job, no oil pollution,?, Rain or shine, all-weather construction. 6, applicability, densely arranged in a small space can reinforced flexible operation. 7, can be connected to horizontal, vertical, diagonal HRB335, HRB400 grade rebar same or different diameters.