Traditional materials and new materials

Traditional materials mainly include brick, stone, wood and bamboo, while modern materials mainly include steel, cement and concrete. New materials refer to new or developing materials with excellent properties and special functions that traditional materials do not have. Or adopt new technology (process, equipment) to obviously improve the performance of traditional materials or produce new functions; It is generally believed that some key materials that meet the needs of the development of high-tech industries also belong to the category of new materials.