The Aluminium (Alloy) Plate & Sheet is our professional product, those are of good quality and price and have fine workmanship. Most of those products can ... ASTM 2) Heat treatment reinforced plate & sheet (pre-stretched plate):Alloy: 2xxx, 6xxx, 7xxx series;Temper: O, F, H111, H112, ... -10000 Adopt standard: GB/T3618 Q/EL432 5) Curtain sheet:Alloy: 1xxx, 3xxxx series & 5005, 5052;Temper: O, H14, H24; ...