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- BS 427:1931 Diamond pyramid hardness numbers

【国外标准】 Diamond pyramid hardness numbers
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适用范围:
暂无
标准号:
BS 427:1931
标准名称:
Diamond pyramid hardness numbers
英文名称:
Diamond pyramid hardness numbers标准状态:
被代替-
发布日期:
1958-10-27 -
实施日期:
出版语种:
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