Nonferrous extrusion casting brand casting is a new metal forming technology, which has the advantages of high production efficiency, good mechanical properties, low production cost, accurate product size and so on. The social demand is huge. The life of die is the main problem restricting its development. It is of great significance to study and improve the life of die. Extrusion forming process, the social demand is very big, if can solve the mold casting definition life problem, will be an important non-ferrous metal forming technology breakthrough. The economic benefits will be considerable. Instructions from material and gasket handling specialists are required. The main products of the company are reverse circulation automatic drilling tools, submersible pumps, deep well pumps and supporting products. The products are widely used in construction, highway construction, farmland drilling and irrigation fields. The use efficiency of the drilling machine is high, but the service life of the drilling machine needs to be improved. The design of the drilling machine needs to be further optimized to improve the quality of the drilling machine, extend the service life of the drilling machine and improve the market competitiveness of the product. (2) Cooperation in the development of large drilling RIGS and multi-functional drilling RIGS suitable for various engineering needs. Recruitment: mechanical manufacturing experts 2 people.