
【国外标准】 Specification for H-section steel arches for use in mines
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适用范围:
暂无
标准号:
BS 227:1970
标准名称:
Specification for H-section steel arches for use in mines
英文名称:
Specification for H-section steel arches for use in mines标准状态:
被代替-
发布日期:
1970-12-11 -
实施日期:
出版语种:
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