From the appearance point of view
look at the central part of the cross-section of the size and shape of wood particles
the length is generally 5-10MM length is appropriate, too long structure loose, too short anti-deformation of the poor, the so-called static bending strength is not compliance;
moisture resistance of wood-based panels depends on its density and moisture-proof agent, soaked in water
no matter how good the moisture, moisture is moisture, not waterproof, so in the future to use a distinction, the northern region
