Deep carbonized wood is a kind of wood treated by high temperature carbonization technology at about 200 degrees. Because its nutrients are destroyed, it has good anti-corrosion and insect-proof functions. Because its water-absorbing functional group hemicellulose is recombined, the product has good physical properties. Deep carbonized anticorrosive wood is a real green product. Although the product has anti-corrosion and insect-proof properties, it does not contain any harmful substances, which not only prolongs the service life of wood, but also does not have any negative impact on human body, animals and environment during and after use. Carbonized wood is called physical "preservative wood". When it is used for indoor floors, furniture and decoration, it can be coated and maintained on the surface like untreated wood. Generally speaking, the penetration of wood protectants can be improved by polishing or brushing. In addition, because carbonized wood has excellent stability and moisture resistance, surface maintenance is easier. Generally speaking, carbonized wood does not need special protection when used indoors. If it needs to be treated, it can be protected by painting, waxing or oiling. When carbonized wood is used outdoors, it is recommended to use outdoor wood paint slightly darker than the original color of carbonized wood, and use translucent wood paint and wood wax oil. In order to reduce or prevent the color of wood surface from becoming lighter or grayer due to solar ultraviolet radiation, outdoor wood paint should be used. Its maintenance method is the same as other common wood maintenance. Before maintenance, the wood surface should be clean and dry. When using carbonized wood, it should be noted that carbonized wood is not suitable for soaking in water or contacting with soil. In addition, in order to reduce the moisture from the end to the carbonized wood and prevent the end from cracking, the end of the carbonized wood should be protected.