... .Material: J55,K55,N80,L80,C90,N80-1,N80-Q 3.Placement:female 4.Std Ref: API 5ct & 5b Detailed description ... )Weight(kg)API 5 CT femaletubing coupling2-3/8"NUE73.02*107.951.282-3/8"EUE77.80*123.821.552-7 ... -1,N80-Q,L80,C90,P1102.We also supply permium thread products by customer's request3.Size:tubing coupling from 1 ... 4-12",casing coupling from 4-1/2" to 13-3/8"4.Type:NU,EU(tubing coupling),STC,LC,BTC ...