API 5CT oil casing and tubing,coupling,pup joint,API 5L pipe line...

API oil pipe,casing pipe,tubing pup joint...

Cross between Dongwaihuan road and Luofu street Beijing Beijing ***, Cross between Dongwaihuan road and Luofu street

In construction industry we play an important role, given the quality of our API 5CT Oil casing,oil tubing,coupling,drill etc. prevailing in the market. Our production facility was first launched with...