It is made of 4-6 years old high-quality moso bamboo and multi-layer solid wood substrate. The bamboo is cooked at high temperature (12-15 hours) and carbonized (160-200°C) to thoroughly remove sugar and insect eggs to ensure insect and mildew resistance. Bonded with an environmentally friendly MDI adhesive (zero formaldehyde), it has a compressive strength of 120 MPa and a hardness close to that of mahogany.