camlock dust cap quick joint coupling 1.material:copper 2.size:1/2" to 6" 3.type: A,B,C ... quick joint coupling *Material: S/S, brass, Al, pp,nylon *size: from 1/2" to 6"*parts" type A, type B, type C, type D, type E, type ... F, type DC, type DP *advantage: economical, convenient, ... wood or steel pallet camlock dust cap quick joint coupling