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What are the categories of ordinary plywood
Plywood is a kind of board like material consisting of three or more layers of wood, which is peeled into veneer or sliced into thin wood, and then glued with adhesive. In order to improve the anisotropic properties of natural wood as much as possible, and make the plywood uniform in properties and stable in shape, when making plywood,
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Soybean Protein Glue Formaldehyde Free Additive Board: What's the High Quality
Soybean protein adhesive was used as an adhesive for wood-based panels at the beginning of this century, but it consistently failed to overcome the moisture and water resistance characteristics of this plant adhesive.