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劳动力市场 · 1998/2/121 分钟阅读
Safety Standards for the Use of Roof-Bolting Machines in Underground Mines
本地自动翻译 · 来源原始语言
摘要
MSHA is extending the comment period on its advance notice of proposed rulemaking addressing the use of roof-bolting machines in underground mines.
来源原始语言: Federal Register — Department of Labor打开原始公告 →