The composite decking board is made of wood fiber and recyclable plastic. It consists of 60% wood fiber, 30%HDPE, and 10% necessary chemical additives. There are no harmful substances in it that are completely eco-friendly. It owns strong durability, corrosion resistance, waterproof, insect resistance, fireproof, etc. The processing performance is similar to the original wood, and can be cut, drilled, etc., which is convenient to use.