Tianjin fengbao petroleum equipment co. LTD
Specializing in the production of oil casing, tubing collar, casing collar, short tubing
National free enquiry hotline022-68112218
Free enquiry hotline022-68112218
In the production of tubing coupling, both ends of the tubing need to be twisted and processed to make the internal thread at both ends of the coupling more uniform and the quality of the produced coupling better. In order to solve this pro...