... 4.Thread: BSP,BSPT,DIIN,NPT Description: Brass quick camlock coupling*Material: S/S, brass, Al*size: from 1/2" to 6 ... "Thread: BSP,BSPT,DIIN,NPT *sand cast*iso9001 certification*parts" type ... A, type B, type C, type D, type E, type F, type DC, type DP*advantage: economical, convenient, simple,* ...