Metal mold casting is a modern technology of making hollow mold with heat-resistant alloy steel. The metal mold can be either gravity casting or pressure casting. The mold of the metal mold can be used repeatedly. Every time the liquid metal is poured, one casting can be obtained, which has a long service life and high production efficiency. The casting of metal mold not only has good dimensional accuracy and smooth surface, but also has higher strength and less damage than that of sand mold when pouring the same liquid metal. Therefore, in the mass production of small and medium-sized castings of non-ferrous metals, as long as the melting point of the casting material is not too high, metal mold casting is generally preferred. However, there are some disadvantages of metal mold casting: because heat-resistant alloy steel and the processing of making hollow cavity on it are relatively expensive, the mold cost of metal mold is not cheap, but the overall cost is much cheaper than that of die-casting mold. For small-scale production, the mold cost allocated to each product is obviously too high, which is generally not acceptable. And because the mold of metal mold is limited by the size of mold material and the ability of cavity processing equipment and casting equipment, it can’t do anything for particularly large castings. As a result, metal mold casting is rarely used in small batch and large-scale production. In addition, although the metal mold uses heat-resistant alloy steel, its heat-resistant ability is still limited. It is generally used in the casting of aluminum alloy, zinc alloy and magnesium alloy. It has been less used in the casting of copper alloy, and less used in the casting of ferrous metal. The metal mould of Xudong precision casting factory is designed and manufactured by itself, so it can provide customers with cheap and applicable high quality mould in time.