Industrial industries that are mainly engaged in industrial production activities such as ferrous metal mineral mining and ferrous metal smelting and processing

Casting is a method of pouring liquid metal into a casting cavity suitable for the shape of the part, and after it has cooled and solidified, the part or blank is obtained.

The general name of enterprises and units engaged in the production and development of the chemical industry. The chemical industry penetrates all aspects and is an indispensable and important part of the national economy.

Convert primary energy such as coal, oil, natural gas, nuclear fuel, hydropower, ocean energy, wind energy, solar energy, and biomass energy into electrical energy through power generation facilities