API Coupling shall be machined from the coupling blank,and made from the coupling material ,coupling stocks or hot forging.
TIANJIN DALIPU OCTG., Welcome You
3-1/2" N80 API Coupling For Tubing
OD Size (In)
PSL1, PSL 2
As a professional manufacturer, we provide follow services:
2.ONE year warranty and life time maintenance
3.In time delivery.
4.High Quality assurance..