Natural stone is divided into slate and granite according to its physical and chemical properties. Artificial stone is divided into terrazzo and synthetic stone according to the process. The terrazzo is forged from cement, concrete and other raw materials; the synthetic stone is made of natural stone gravel as raw material, and is pressed and polished with a binder. The latter two are made by hand, so the strength is not as high as natural stone. Stone is a high-grade product of architectural decoration materials. Natural stone is roughly divided into granite, slate, sandstone, limestone, volcanic rock, etc. With the continuous development and advancement of technology, the products of artificial stone are constantly changing, and the quality and beauty are not inferior to natural. Stone. With the development of architectural design, stone has already become one of the important raw materials for construction, decoration, roads and bridge construction.