The company is a specialized enterprise dedicated to R&D, manufacturing and sales of oil drilling equipment and tools. The company was founded in 1958 and restructured into a private enterprise in 2002. In December 2011, it underwent a shareholding system reform in accordance with the requirements of the company's transformation and development, and was listed on the main board of the Shanghai Stock Exchange on December 9, 2016. The main business is R&D, production and sales of oil and gas drilling and wellhead drilling equipment and tools. The main products include lifting equipment, clamping equipment and locking equipment. Corporate honors: high-tech enterprise certificate; model workers' home; advanced grass-roots party organization; famous trademark certificate of Jiangsu Province; standardized good conduct certificate, etc.