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Gymnosperms are the class of plants that are seed-bearing. Conifers are a large group within this family, such as pine trees, spruce, fir, and cedar. All these trees are very important to the timber industry in many ways. Pine trees have long been used as a major staple in the construction industry. Scrub wood, or pulp wood is a major factor in the production of paper and paper goods. Tree parts and pieces are used to manufacture wood products known as particle board. Plywood is also made from wood pieces and slabs, then glued together. Gymnosperms represent a resource that is viable, stabilizing, and renewable. A tree crop, from planting to harvest, may be realized within thirty years, provided disease, drought, or fire should not strike. Gymnosperms should be considered one of the strong points of the American workforce and economy.
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