he blockboard spreads the wood odor to identify
deformation, with or without blistering, sagging; can be in the field or construction blockboard will be open to observe the internal core is uniform and neat, the smaller the better gap
Four to see if there is smell If the blockboard fragrance smell of wood, indicating less formaldehyde release; if the smell pungent, indicating more formaldehyde release, or do not buy.
Whether the core arrangement is uniform and neatly, the smaller the gap is, the better the core is decaying, the fracture, the wormhole, the knuckles, etc. In general, the quality of the large core board with good quality is better.
The width of the core can not exceed 2.5 times the thickness, or easy to deformation; core should be no decay, fracture, wormhole, knots and so on.
