The roller core, shaft head, and end face of the Hastelloy alloy steel roller are made of alloy steel, and the surface is sprayed with Hastelloy alloy, which is processed using special techniques. Hastelloy alloy has a unique chemical composition that can effectively resist high wear, strong corrosion, and high temperature. Due to its high performance, it has been widely used in many industries, such as the petrochemical industry and marine engineering. It has also received a good reputation in the biomedical and medical industries.