1. From the appearance point of view, look at the large size and shape of the sawdust particles in the center of the cross section, the length is generally 5-10mm in length, too long and loose structure, too short and poor deformation resistance, and the so-called static bending strength is not up to standard;
2. The moisture-proof nature of the wood-based panel depends on its density and moisture-proof agent, no matter how good the moisture-proof performance is soaked in water, moisture-proof refers to moisture-proof, not waterproof, so in the future use, it is necessary to distinguish between the northern regions, including North China, Northwest China, and Northeast China, and the moisture content of the board should generally be controlled at 8-10%; The southern region, including the coastal area, should be controlled between 9-14%, otherwise the plate is easy to absorb moisture and deform.
3. In terms of surface flatness and smoothness, it is generally polished with sandpaper of about 200# when leaving the factory, and it is generally fine up and down, but at some times, such as sticking fireproof boards, etc., it is too fine to hang glue.
