Detailed Product Description Rubber quick hose coupling: Technical parameters: SIZE inch 1/2 3/4 1 1- ... mainly manufactures Rubber waterstop, SAE hose, DIN hose,Rubber hose coupling, Air hose, Water hose, Fire-resistant hose, Hose clip cloth ... exporting to more than 30 countries and regions, e.g. USA, Britain, Germany, Korea, Russia, Iran, Kuwait, Brazil, Argentina, Venezuela, Indonesia ...