素有“绿色宝库”的大兴安岭，生长着一种通身洁白美若“天使”的树—白桦树。它通身是宝，细腻的材质是制作各种高档家具及用品的良材，连树叶、汁液也是天然保健品，尤其白桦树美丽的外衣，更是与人类生活息息相关，它不但可入药，且富含油脂，可提炼某种工业用油，树皮也亟 Daxinganling, also known as the “green treasure house,” grows a birch tree called “Angels”. It is a treasure, delicate material is the production of a variety of high-grade furniture and supplies of good material, even the leaves, juice is also a natural health products, especially the beautiful birch tree coat, but also closely linked with human life, it not only medicine, Grease, can refine some kind of industrial oil, the bark is also urgent