Standard Speciﬁcation for Copper-Beryllium Alloy (UNS No. C17000 and C17200) Forgings and Extrusions1
This preferred is issued below the ﬁxed designation b 570; the range right away following the designation suggests the 12 months of unique adoption or, in the case of revision, the 12 months of closing revision. A variety of in parentheses indicates the 12 months of remaining reapproval. A superscript epsilon (e) shows an editorial exchange because the closing revision or reapproval.
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You can also get ASTM B 569 – 04 International standard