1) There is a difference between the front and back of the splint. When choosing, the plywood should have a clear wood grain, a smooth and smooth front, no roughness, and a smooth and no lag feel; When buying multiple sheets of plywood, you should choose plywood with a similar wood grain and color.
2) The plywood should not have defects such as damage, bruises, hard injuries, scars, etc., and should be free of decay and deterioration;
3) No degumming of plywood;
4) Some plywood is made of two veneers with different textures pasted together, so it should be noted that the joints of the splint should be tight in the selection, and there is no unevenness;
5) When selecting splints, attention should be paid to selecting splints that do not fall apart. If the sound is brittle when the plywood is knocked on all parts by hand, it proves that the quality is good, and if the sound is muffled, it means that the splint has been loosened;
6) Choose environmentally friendly plywood and pay attention to its formaldehyde emissions. Consumers should buy high-quality environmentally friendly brand boards.
