Standard Speciﬁcation for Steel Wire, Oil-Tempered Carbon Valve Spring Quality1
This popular is issued under the ﬁxed designation a 230/a 230m; the range straight away following the designation indicates the year of authentic adoption or, within the case of revision, the year of ultimate revision. a number of in parentheses suggests the yr of final reapproval. a superscript epsilon (e) shows an editorial alternate for the reason that ultimate revision or reapproval.
This wellknown has been approved for use by agencies of the department of defense.
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