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Re: Me 262 plate, assembly nos.
3116.5 significates the quality of the metal sheets, in this case Duraluminium. Between the figures you can faintly see the manufacturer´s logo.
3 = Light metal
1 = copper-magnesium Duraluminium
1 = ?
6 = ?
.
5 = externally hardened and treated
Hope this helps
Regards
Roland
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