TIANJIN RICHSEN TECHNOLOGY CO.,LTD

The company produces casing, tubing hoops, stable quality, cost-effective, product technical parameters in full compliance with API5CT and API5B standard requirements, our company's existing thread tight CNC processing machine 30, can produce a variety of steel-grade long round thread, short round thread, ladder thread and NU, EU buckle thread joint, oil pipe clamp from 2-3/8' to 4-1/2', Sleeve clamps from 4-1/2''''' with an annual production capacity of more than 1 million