... 4)MATERIAL:BRASS,STAINLESS STEEL,ALUMINUM,PP,NY Hose Camlock CouplingMaterial:Aluminum,Brass,Stainless steel,PP,nylonSize:1/2,3 ... produces Stainless Steel Precision Cast Parts, Aluminum cast Parts, Camlock Quick Couplings, Fire Hydrants, Guillemin Couplings, Hose Couplings, ... USA, European,Japanese, and Australian standards for couplings used to transport the petroleum,the chemical fuel,fire-fighting ...