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BS EN 573-5:2007
Aluminium and aluminium alloys. Chemical composition and form of wrought products. Codification of standardized wrought products (British Standard)
This document specifies the codification of some standardized semifinished wrought products for use in ordering information. NOTE Codification is usually required for technical drawings. It does not apply to castings, cast forging stock, rolling ingots, extrusion billets and ingots for remelting.
British Standards Institution [bsi]