... quick couplings include type A,B,C,D,E,F, The company covers about 26,000 m2, specializing in producing Hose,High pressure hose ... ,Hydraulic rubber hose,Hydraulic hose,SAE & DIN Series,Metal hose,Teflon(PTFE) hose,Nylon Resin tube,Braided hose,Fireproof hose,Hose coupling, Assembly ...