Datums
Datums
Datums
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Geometric Dimensioning & Tolerancing (GD&T)<br />
Datum reference symbols<br />
‣ The datum feature symbol identifies a surface or<br />
feature of size as a datum.<br />
A<br />
ANSI<br />
1982<br />
A<br />
ASME<br />
1994<br />
A<br />
ISO
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