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    • CommentAuthorqzz10011
    • CommentTimeSep 19th 2017
    <p>In addition to lignocellulose, there are many low molecular weight organic compounds. The extract of wood has fatty acids, resin acids, waxes and terpenes [7]. For example, cedar plants will release rosin <a href="">lightweight decking material Salvador</a> to avoid pests. Wood extract can be used as oil rosin, turpentine and rosin. Hardwood, softwood and wood strength Wood is often classified as softwood and hardwood.</p><p> Wood made of pine and cypress (like pine) is called cork, and wood made from <a href="">wooden cladding for exterior walls</a> dicotyledonous plants (like oak) is called hardwood. But cork and hardwood classification often cause misunderstanding, because the cork is not necessarily soft, hardwood is not necessarily hard. For example, light wood is hardwood, but softer than any sold cork, and some cork (berry yew) is harder than many hardwoods.</p><p> There is a strong correlation between the type of trees and the nature of the wood being made. The density of the wood varies with the tree species, and the strength of the wood and its density. For example, mahogany is medium-density hardwood, is the production of furniture, fine materials, balsa density is small, commonly used to make building models or model aircraft. Black wood is one of <a href="">decks boards directly on ground</a> the highest density wood.</p>
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