The predecessor of our company was Mudanjiang Great Wall Oil Petroleum Machinery Factory, which was organized as a Joint-stock company according to the Corporation Law in 2001. Our main products are BOP, Drilling Tools, Wellhead Tools, Fishing Tools, Cementing Tools, F type and 3NB type spare parts of Mud Pumps, Drill Collars, Spiral Drill Collars, Integral Heavy Weight Drill Pipes, Work-over Tools, Coring Tools and other equipment, including more than 100 types and more than 1000 specifications.



We have obtained the use right of API monogram and the certification of...