Our company mainly produces Petroleum tubing and casing coupling. We have 10 modes of tubing coupling and 37 modes of casing coupling, which have 6 steel levels. Main kinds of thread are long round thread casing (LC), short round thread casing (STC) and buttress thread casing (BC). Special-bevel couplings have non-upset tubing (NU) and extend-upset tubing EU. NU has a mode of special –clearance couplings. EU has two modes of special –clearance couplings.

We are the designated supplier of Tianjin days Steel Oil Pipe Co., Ltd,
Shengli oil field, Daqing oil field and changing oil field.
Our products had all passed the standard test of API Spec 5 CT and get well evaluate based on our high pursuit and tireless efforts of quality.

Our raw materials were chosen from the suppliers which passed certification of API such as Tianjin Seamless Steel Tube Plant.
The rate of qualified products in our company has risen from 95% to 97%.
We hope cooperation with your esteemed company.
Your contact is welcomed very much!