BS EN 12020-1:2001 pdf free.Aluminium and aluminium alloys一Extruded precision profiles in alloys EN AW-6060 and EN AW-6063.Technical conditions for inspection and delivery. BS EN 12020-1 This part of EN 12020 specifies technical conditions for inspection and dlivery of alloys EN AW-6060 and EN AW-6063 extruded precision profiles manufactured with and without a thermal barrier (see Figures 1 and 2). It...