ISO 19426-4:2018 - Structures for mine shafts — Part 4: Conveyances https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/07/22/72224.html https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/07/22/72224.html ISO 19426-4:2018 - Structures for mine shafts — Part 4: Conveyances Thu, 18 Aug 2016 18:16:11 +0200