... B C D E F DC DP 4.ISO9001BSP,NPT ALUMINUM CAMLOCK COUPLINGS Type-DC Dust Cap The following is the ... ”Type:A, B, C, D, DC, DP, E, FBody material:Aluminum (or heat treated)Thread:NPTBSP (We usually produce the female ... -571-83942286 Our website: www.dadehardwareco.com Our factory of aluminum camlock coupling: Aluminum cam-lock coupling