
Hardware, Builders, Door Closers - Revision D
出版:US Military Specs/Standards/Handbooks

专家解读视频
基本信息
标准编号: FF H 121 Revision D
标准类别:Standard
出版单位:US Military Specs/Standards/Handbooks
标准页数:18
标准简介
Specifies mechanical devices for automatically closing hinged or pivoted doors using a combination of metal springs and liquid or air controlled checks
标准备注
D NOTICE 1 - Notice of Cancellation/Superseded by A A 1926.
(08/2004)
本标准修订后的版本