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nature : also known as mechanical pulp. A wood pulp. Tsugae available conifers or broad-leaved poplar category as raw materials. Mechanical grinding method in the system, containing almost all of the wood raw material composition, the harvest rate is high and therefore low cost. Ordinary wood pulp mill on the paper can be broadly divided into two types : (a) a white pulp mill, wood millstone grinding directly from the surface. Short and Fiber, Paper Asorption strong, transparent, but lack of storage, easy brittle, yellowed hair. Large used in the manufacture of newsprint, cardboard for a small amount. (2) brown wood pulp mill, the first wood at the bottom of steam within pre-steamed, and then spend the grinding machine grind into wood pulp. Were brown color, fiber length than the former, pulp strength and better treatment is also applicable to the production of wrapping paper and cardboard.
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