1, Lanzhou Shi Lan group co., ltd. is one of the two key construction projects during the first five-year plan period 156. Lanzhou Petrochemical Machinery Factory and Lanzhou Petrochemical Equipment Factory merged and went through a glorious course of 60 years. It is the earliest, largest and strongest large-scale leading enterprise group of high-end energy equipment in China, which integrates oil drilling, oil refining, general machinery R&D, design and manufacturing.
2. Lanzhou Guo Qi Equipment Manufacturing Group Co., Ltd. is a professional pump product enterprise integrating R&D, manufacturing, sales and service. It is a wholly state-owned company that was restructured from the original Lanzhou Water Pump Factory established by 1958. The enterprise was once the first batch of designated professional pump manufacturers in the Ministry of Machinery Industry and one of the 25 key enterprises in the national pump industry.