Shandong Nine-Ring Petroleum Machinery Co. Ltd. Is a company specializes in producing sucker rod, oil well pump and well pumping unit. For many years, the company has been awarded as one of the advanced technology enterprise and top business credit standing enterprise by China Shandong Science and Technology Council.

The company occupies an area of 128, 000 square meters, with total assets amounting to 268 million RMB and staff strength of 928 including 156 professional engineers. The company is equipped with large advanced facilities and precise testing equipments 249 sets. Annually, the company produces: Barrel-Tubular-type oil Well Pump 10, 000 sets; High-Energy-Saving Well Pumping Unit-500sets; Various Types of Sucker Rods-14 million meters including HY Model Energy having Super Strength Sucker Rod 10 million meters; Anti-corrosion Sucker Rod 2000 thousands meters; Tape Thread Screw Pump Sucker Rod 2 million meters. Oil tube 60 thousands tones including external upset tubing 40 thousands tones. In 2003 and 2005, the company was awarded the ISO 9001 Quality Managements System certificate at ion and API international certification.