In recent years, the rapid development of the domestic automotive industry has driven the automotive mold manufacturing industry. Take Botou City, Hebei Province as an example. At present, there are more than 40 automobile mold production enterprises in the city, with an annual output value of 3 billion yuan, and the output value of automobile panel parts accounts for 20% of the country. The picture shows an automobile mold company in Botou City, Hebei Province, where workers are grinding automotive molds.