Now there is a lack of research conditions, only a simple imitation, even if made, life is far lower than the level of similar products abroad. The rotating accuracy of imported bearings is higher than that of domestic P4. It is hoped that the bearing precision can reach the imported bearing precision through technical transformation to replace the foreign products. The company has strong technical force, has a high-quality scientific and technological personnel casting casting team, high and intermediate professional and technical personnel 26 people. Mainly engaged in the production, maintenance, scientific research, development and production of coal mine electromechanical dustproof products. The company has 5 patented technologies, including 2 invention patents and 3 utility model patents. (1) Solving the current domestic coal shearer internal jet blocking caused by the coal face dust flying problem. (2) Solve the environmental deterioration of the working face caused by dust deposition of steel castings. (3) without any external power supply, can be automatically added dust-removing agent. The company is committed to the research, manufacturing and sales of molten steel flow control technology and equipment. It is a high-tech enterprise integrating science, industry and trade. The company has a strong R&D production capacity and perfect sales and service network. TZ possesses A number of patented technologies, such as LSG-A, LSG-B series ladle sliding nozzle mechanism, LSZ-H series tundish sliding nozzle mechanism, LSZ-FK tundish fixed diameter nozzle quick change mechanism, LSZ-BK tundish slab quick change mechanism, LSZ-S tundish rod stopper device, etc. In 2011, the number of domestic users exceeded 110. The company has passed ISO9001:2008 quality management system certification. The market share of "Tianzheng Taisheng Industrial Casting" products ranks first in the field of molten steel flow control in China.