Eco-board, also known as paint-free board. Ecological board in a broad sense refers to a decorative board with chips, particles, sawdust and wood blocks in the middle. In a narrow sense, the eco-board refers to the veneer with wood blocks in the middle, such as Malacca, Paulownia, Poplar and Cunninghamia lanceolata. Nowadays, eco-board has been widely used in home decoration, cabinets and wardrobes, bathroom cabinets and other fields.