... Items are ISO,A,AG,G,W,UN,NPT,ACME,API et Threaded insert SIZE RANGES ARE 11ER/16ER/22ER11IR/16IR/22IR ... etc..Items are ISO,A,AG,G,W,UN,NPT, ... W LDC16 IR 14 UN LDCCNMG120404-TF LF901816 ER 18 NPT LDC16 IR 14 W LDACNMG120408-TF LF901116 ER 18 ... quality ,low price .We can satisfiy all customers' requirements Threaded insert( ISO,A,AG,G,W,UN ...