Plywood in the material defects?
discoloration discoloration Where the normal color of wood changes called color, can be divided into two kinds of chemical discoloration and fungal discoloration.
race of the parasitic plant marks of parasitic plants formed by the parasitic plants or rotten plants penetrate the wood and the formation of small groups of small channels
resin leakage (resin) resin streak trees after the local injury, the resin gathered in a large number of them and through the surrounding wood and the formation of color than the surrounding normal wood deep
Abnormal structure Any defects caused by abnormal wood construction, such as wrinkles. Wavy pattern. Staggered pattern, spiral pattern and so on.
