Cam&groove coupling Alumninum. Size:1/2"-- 6", Type: A,B,C,D,E,F,DC,DP,DA,SA,AA, Standard: DIN EN 14420 ... -7-2005. Cam&groove CouplingAluminum Cam Lock CouplingUsed in a ... , 21/2", 3", 4", 5", 6" 5) Type: A,B,C,D,E,F,DC,DP,DA,SA,AA/Aluminum6) Cast method available ...