Chanel slate is a new type of ceramic material. The invention is safe and sanitary, can directly contact with food, is nontoxic and harmless, has no radiation, can be recycled continuously, and is healthy and environment-friendly. Rock plate is a new type of super-large porcelain material which is made of natural raw materials through a special process, pressed with a press of more than 10,000 tons (15,000 tons), and fired at a high temperature above 1200℃ combined with advanced production technology, and can withstand cutting, drilling, polishing and other processing technologies.