... We mainly supply camlock couplings (cam & groove quick couplings), guillemin coupling, Bauer type coupling, chicago coupling, Ground joint coupling, sandblast coupling ... , whipcheck safety cable, washdown gun, etc.Universal Crowfoot Air Hose Couplings (US-Type) are all supplied with Oil ... Air and Water Only.9,Warning: Never Use Universal Crowfoot Hose Couplings for steam service 10.customers 11, FAQ ( ...