Rongsheng Machinery Manufacture Ltd. of Huabei Oilfield, Hebei, founded in 1976, has become a comprehensive petroleum machinery manufacturer integrated with product researching, development and manufacturing, equipment integration and supporting, and engineering services. It is the world's leading manufacturer of land BOP in production and sales, and class A supplier of CNPC drilling and workover BOPs.

The company's main products and businesses include: land BOPs and well control equipment, offshore platforms and offshore well control equipment, mud pumps and pumping units, slant rig's manufacturing and engineering services, high pressure wellhead equipment, snubbing unit, choke and kill manifolds, pumping units and tubing.