Explanatory notes
… is permitted in a proportion greater than 0.1 % but not more than 0.2 %, provided that neither the chromium nor … By repeated electrolysis, aluminium can be obtained almost completely pure. Aluminium may also be obtained by the … is also very suitable for extrusion and die‑casting. In modern practice it can be soldered. Aluminium is an …Legal note
… is permitted in a proportion greater than 0.1 % but not more than 0.2 %, provided that neither the chromium nor …
