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- BS 1421:1947 Picks, beater picks and mattocks

【国外标准】 Picks, beater picks and mattocks
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适用范围:
暂无
标准号:
BS 1421:1947
标准名称:
Picks, beater picks and mattocks
英文名称:
Picks, beater picks and mattocks标准状态:
被代替-
发布日期:
1974-02-15 -
实施日期:
出版语种:
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