There are many types of solid wood, such as beech, elm, ash, oak, pine, fir, sedge, camphor, etc. The most commonly used in China is oak. Pine and fir are poor, ash, beech, and elm are medium to upper, and the higher ones are the mahogany series. The advantage of oak is that it is resistant to corrosion. The advantage of pine and fir is that the price is relatively low. In addition, the physical properties of solid wood are unstable and difficult to shape. When purchasing, you can smell it to see if there is a pungent smell. We cannot buy furniture with excessive formaldehyde.