Inorganic pre-coated boards, with 100% asbestos-free calcium silicate boards as the substrate, technically crawled coated with special polyester for surface treatment, so that it has an effective fire resistance, aging resistance, water resistance, maintains a bright appearance and gives a sense of cleanliness. As a new type of building decoration material, inorganic pre-coated board, with the characteristics of environmental protection and non-toxicity, excellent fireproof performance, easy installation, good decorative effect, good durability, etc., it is widely used in indoor and outdoor wall decorations, ceiling decorations, furniture manufacturing and exhibition display and other fields.