Hokkaido University Collection of Scholarly and Academic Papers >
Field Science Center for Northern Biosphere >
北海道大学演習林研究報告 = Research Bulletin of the Hokkaido University Forests >
第十七卷 第二號 >
THE HARDNESS TEST BY STATIC BALL INDENTATION FOR WOOD, ESPECIALLY FOR NARA-WOOD UNDER VARIOUS MOISTURE CONDITIONS
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