1). Look at the thickness (this method can also be used for other boards). For example, the blockboard with standard thickness of 1.8 really reaches 1.8mm, which can basically be judged as a good board. Most of the plates on the market are not up to standard, and the plates with standard thickness 1.8 are slightly better.

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2). Pick up a corner of the joinery board and shake it: the poor board can hear a "snapping" sound similar to the snapping sound, while the good board has no sound. In addition, we can also see the shaking amplitude, and the shaking amplitude of a good board is very small. Because some boards are invisible from the outside before use, once sawed, you can see a hollow part in the middle, mixed with miscellaneous wood. This kind of board is easily deformed, so you should be careful.

3) Look at the flatness of the panel: you can look at it with your eyes or touch it with your hands. The surface of inferior joinery board is uneven and peeling. Another method is to divide flatness into single-sided and double-sided. The plates produced by regular manufacturers will be marked with brands and specifications on the side of the plates by spray printing, while the informal plates will just stick a sticker.

Then there is the ranking of the top ten sectors in China.

1, fusenwang plate 2, Dongting plate 3, earthen bag

4. Paterson plate 5. Fuqing

6. Millennium Ship 7. Red group house 8. Wanzhou forest 9. Qianshan 10. Mount Mogan