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BS 2L 77:1971

Действует
Specification for forging stock and forgings of aluminium-copper-magnesium-silicon-manganese alloy (solution treated and precipitation treated) (Cu 4.4, Mg 0.5, Si 0.7, Mn 0.8) — 8 стр.
ICS
49.025.20 Aluminium / Алюминий