... manufacturer specializing in producing air tool, air tool accessories, AIR CONNECTOR, auto parts and tire repair tools, such as quick coupler ... innovation.If you need the quick couplers, quick coupling, PU connector, brass fittings, tire chucks, tire gauges,plugs , mini compressors , tire ... the refered size6mm,8mm,10mm,12mm-M5,01,02,03,04 PU connector