... brass, Al 2.Brass quick camlock coupling 3.size: from 1/2" to 6" 4.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,*available in a ... wide range of materials and sizes to suit most applicationsPls contact jane by ...