According to the texture of wood and the surrounding wood Outdoor Floor Exporters Online , it is divided into living, dead and missing. The joint destroys the uniformity and integrity of the wood structure, which not only affects the appearance of wood and the processing properties, but also reduces the strength of the wood.
(2) insect pests: the perforation of various insects in the wood is called wormhole or insect eye. The insect eye can be divided into the skin wormhole, the small bug eyes and the big bug eyes. Epidermal grooves: wormhole with a depth of less than 10mm. The maximum diameter of a wormhole is less than 3mm.
The minimum diameter of wormhole is more than 3mm. Insect pests have a certain effect on the material, not only reduce mechanical properties, but also bring diseases to the wood, so it must be restricted to prevent and control pests.
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