FF-H-121 Revision D:1974
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
HARDWARE, BUILDERS, DOOR CLOSERS
Available format(s)
PDF
Superseded date
15-01-1988
Publisher
Specifies mechanical devices for automatically closing hinged or pivoted doors using a combination of metal springs and liquid or air controlled checks
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