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Date: 2012-11-04 00:53:57Mine Safety and Health Administration Safety engineering Pike River Mine Mining accident Westray Mine Mining disasters Coal dust Coal mining Safety lamp Mining Occupational safety and health Grey District | Chapter 20 A failure to learn Introduction 1.Add to Reading ListSource URL: pikeriver.royalcommission.govt.nzDownload Document from Source WebsiteFile Size: 853,27 KBShare Document on Facebook |