Advantages And Production Requirements Of Plywood

The first is symmetry. The principle of symmetry is that the veneers on both sides of the symmetrical central plane of the plywood should be symmetrical to each other regardless of the nature of the wood, the thickness of the veneer, the number of layers, the direction of the fibers, and the moisture content.

The second is that the adjacent layers of veneer fibers are perpendicular to each other. In a unified sheet of plywood, veneers of a single species and thickness can be used, or veneers of different species and thicknesses can be used; however, any two layers of veneer that are symmetrical to each other on both sides of the symmetrical central plane must be of the same species and thickness.

In fact, the selection of plywood is also very particular: when selecting plywood, you should focus on the "soft rib" of the plywood, look at the edge sealing effect of the plywood, and ask whether the edge sealing process of the plywood is manual or machine, and automatic or automatic. It is very important whether the semi-automatic edge sealing is fit and firm, and whether the glue marks are obvious.