Donate books, learning stationery, computers and other educational supplies to rural primary schools, support the development of education in rural areas, and care for the learning and physical and mental health of young people and children.

There are many factors that need attention and treatment in the treatment and mixing of tidal sand. If one or more critical conditions cannot be maintained within the control range, the mixed wet sand without good conditions will directly affect the quality of the generated castings

The fundamental difference between the traditional semi-automatic molding machine and the fully automatic horizontal parting casting molding machine lies in the fact that the automatic molding machine uses hydraulic cylinders to compress the sand inside the sand box in one go and with high strength, which has certain requirements for the hardness and strength of the mold to avoid damage to the mold when the compaction pressure increases during the sand mold compaction process;

Below is a brief analysis of the identification methods for ductile iron castings and gray iron castings for everyone