High-speed steel contains high carbon and a large number of alloying elements, and the hardness after heat treatment is as high as 63~79HRC.

304 stainless steel plate has beautiful surface and diversified use possibilities, good corrosion resistance, longer durability than ordinary steel, 304 stainless steel plate has good corrosion resistance and high strength, so the possibility of thin plate use is high, high temperature oxidation resistance and high strength, so it can Fire-resistant and room temperature processing, that is, easy to plastic processing, because there is no need for surface treatment, it is simple, simple to maintain and clean, high smoothness and good welding performance.

Magnesia carbon brick has the advantages of high temperature resistance, good slag resistance, strong thermal shock resistance, high thermal conductivity and low high temperature creep, so it is widely used in steelmaking production. In the ladle refining process, the erosion of the slag line magnesia carbon brick is usually the most severely damaged area of ​​the lining. The long-term chemical erosion and mechanical erosion of the slag become the main damage mechanism.