... type A1 can only be used with components of J30J ordinary type compressing series plug (socket).Line clamp components of type A3 ... type A3 can both be used with components of J30J ordinary type compressing series plug (socket) and components of J30J ordinary type ... , 37, 39, 51, 66, 74, 100TJ/ZK: TJ-plug with pin, ZK-socket with holeN: no mark-compressing connection type, S-welding connection ...