How to choose plywood?

1) There is a difference between the front and back sides of a plywood. When selecting, the plywood should have clear wood grain, a smooth and smooth front surface, without roughness, and should be flat without any clumping sensation; When purchasing multiple plywood sheets, choose plywood with similar wood grain and color.
2) Plywood should not have defects such as damage, bumps, hard marks, or scars, and should not have any signs of decay or deterioration;
3) The plywood has no delamination phenomenon;
4) Some plywood is made by sticking two veneers with different patterns together, so when choosing, it is important to pay attention to the tight seams of the plywood, without any unevenness;
5) When selecting plywood, attention should be paid to selecting non loose plywood. If the sound becomes crisp when tapping on various parts of the plywood by hand, it indicates good quality. If the sound becomes dull, it indicates that the plywood has loose adhesive;
6) Choose environmentally friendly plywood and pay attention to its formaldehyde emission. Consumers should purchase high-quality and environmentally friendly branded boards.