Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 5: Codification of standardized wrought products
铝和铝合金 - 锻造产品的化学成分和形式 - 第5部分:标准化锻造产品的编纂
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.