LTC COUPLINGS 244.8*8.94mm 53.57kg/m K55 API Seamless LTC R3

EUE COUPLINGS 73*5.51mm 6.5lb/ft J55 API Seamless EUE R2

API Coupling J55 K55 N80 P110

1.Size:1.9" to 20"
2.Grade:J55,K55,N80-1,N80Q,L80-1,L80-9Cr, L80-13Cr,C90,C95,T95,P110,Q125
3.Standard: API Spec 5CT and Agree

api 5ct coupling

1.O.D: 2-3/8"-20"
2.Grade:J55 K55 N80 P110 ect
3.Thread :NU EU STC LTC BTC
4.Standard: API 5CT