Standard Specification for
Uncoated Stress-Relieved Steel Wire for Prestressed
Concrete1
This preferred is issued below the constant designation a 421/a 421m; the range without delay following the designation suggests the 12 months
of authentic adoption or, within the case of revision, the year of remaining revision. more than a few in parentheses shows the yr of remaining reapproval.
a superscript epsilon (e) shows an article change since the ultimate revision or reapproval.
This wellknown has been approved for use by using businesses of the branch of protection.
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