1. When selecting, it is important to choose plywood with wood grain and similar colors, and also consider the home decoration design. Only by starting with the style can we find a matching plywood color.

2. There should be no dead knots or patches on the front, which is an intuitive aspect that can be checked.

3. The keratin nodes must have at least five active nodes, and the area size cannot be less than 15 square millimeters.

4. The color of plywood should not have obvious color differences, nor should there be dense hair drying cracks, nor should there be cracks greater than 200mm x 0.5mm.

5. From the appearance, it can be seen whether the plywood has any signs of decay or deterioration. It is important to choose a product with good quality and a long service life in order to reduce costs for households.