Steel balls are divided into grinding steel balls, forged steel balls and cast steel balls according to the production and processing technology. According to the processing materials, they are divided into bearing steel balls, stainless steel balls, carbon steel balls, copper bearing steel balls, alloy balls, etc. Among them, bearing steel balls are important basic components in industry. Alloy steel balls are made of carbon, chromium, manganese, molybdenum, etc. as the main added metal elements, and are produced by forging, spinning, rolling and casting. The shaped iron alloy wear-resistant body is the most important component of today's crushing industrial mining balls and cement balls.