1.Grade for L-80 .N-80,J-55 and K-55 P-110 2.Casing joining coupling and tubing coupling 3.STC.LTC.BTC ,Premuin connection

We have more than 10  years experience of producing ,developing and selling oil pipes and their accessories, steel pipe fittings and other down well tools

Our company manufactures and sells casing and tubing couplings,pup joints, tool joints, adapter pup-joints, adapter couplings, stabilizers, anchors of oil pumps and revolving sand gravitated device of well, etc. We always do business based on the principle of equality and mutual benefit, we provide the high quality and competitive price products.

Have all grade of API standard for thread also.

Grade,J/K55,L/N80,P110

Thread, BTC,LTC,STC.

Size of Tubing , 2 3/8 " - 4 1/2"

Outside diamete, 60.32 – 114.3mm

Wall thickness,4.83-6.88 mm

EUE,NUE

Size of Casing ,4 1/2 "- 20."

Outside diameter ,114.3 - 508mm

Wall thickness, 5.21 – 16.13mm

Grade ,J55 / K55/ N80 / L80 / P110

Standards: USS ,BS, DIN