Classification of plywood

(1) According to the purpose, it is divided into ordinary plywood and special plywood.

(2) Ordinary plywood is divided into type Ⅰ plywood, type Ⅱ plywood, and type Ⅲ plywood, which are weather-resistant, water-resistant and non-moisture-resistant plywood.

(3) Ordinary plywood is divided into unsanded board and sanded board according to whether the surface is sanded or not.

(4) According to the tree species, it is divided into coniferous plywood and pavilion plywood.