ASME B30.21:2014(R2019)现行
Lever Hoists Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings
出版：American Society of Mechanical Engineers
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基本信息
标准编号： ASME B30.21:2014(R2019)
发布时间：2019/11/25 0:00:00
标准类别：Standard
出版单位：American Society of Mechanical Engineers
标准页数：0
标准简介
Volume B30.21 includes provisions that apply to the construction, installation, operation, inspection, and maintenance of ratchet and pawl and friction brake type lever chain, rope, and web strap hoists used for lifting, pulling, and tensioning applications (see Figs. 21-0.1-1, 21-0.1-2, and 21-0.1-3).
本标准替代的旧标准
