... A,B,C,D,E,F,DC,DP, Qualified member of NFPA. Standard: DIN EN 14420-7-2005. Cam&groove Couplingquick hydraulic hose ... couplingUsed in a wide variety of applications for petroleum handling, chemical ... , 21/2", 3", 4", 5", 6" 5) Type: A,B,C,D,E,F,DC,DP/Brass6) Cast method ... .10) We are qualified member of NFPA. quick hydraulic hose coupling