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Preparation method of active components in root-bark tree peony by in-phase leaching and sub-item preparation 专利
申请日期: 2011-01-01,
作者:  ZIYAO WANG;  QINGJUN ZHU;  YAN CHEN;  WENXIU SUN
收藏  |  浏览/下载:2/0  |  提交时间:2019/04/19
Complicated mephitic waste gas purification method, involves filtering and purifying waste gas through packing tower, where stuff of packing tower is mixture of tree bark, barnyard manure compost and volcanic. 专利
申请日期: 2008-01-01, 公开日期: 2008-03-12
作者:  ZHANG C QUAN X DU L GENG C WU D HAO
收藏  |  浏览/下载:8/0  |  提交时间:2019/12/27
Natural dyeing method for wood products using pine tree bark extract and the natural dyed wood products thereby 专利
作者:  HAN, OHAN TAEK;  HAN SUN JEONG
收藏  |  浏览/下载:0/0  |  提交时间:2019/12/05


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