Cam&groove coupling Alumninum. Size:1/2"-- 6", Type: A,B,C,D,E,F,DC,DP,DA,SA,AA, Standard: DIN EN ... ", 5", 6" 5) Type: A,B,C,D,E,F,DC,DP,DA,SA,AA/Aluminum6) Cast method available : Gravity Cast ... to customers’ requirements.10) We are qualified member of NFPA. camlock hose coupling