Ordinary traditional inorganic nonmetallic materials that are widely used refer to ().

202 1 textbook P8

1. Ordinary traditional nonmetallic materials refer to materials with silicate as the main component, including some non-silicate materials with similar production processes. There are mainly silicon carbide, alumina ceramics, borate, sulfide glass, magnesium oxide, chrome-magnesium refractories and carbon materials. This material has a long history of production, large output and wide application.