大规格高性能铝卷带通常指表面质量、尺寸精度、版型以及性能方面要求达到较高标准的铝精深加工产品，广泛应用于交通运输（地铁、高铁等）、航空航天、海洋船舶、包装等国民经济发展和国防建设领域所需关键基础材料。
Large size and high-performance aluminum coils usually refer to aluminum precision and deep-processing products that meet high standards in surface quality, dimensional accuracy, version and performance. They are widely used in key basic materials required for national economic development and national defense construction, such as transportation (subway, high-speed railway, etc.), aerospace, marine ships, packaging and so on.
一汽车轻量化：
I. automobile lightweight:
铝合金被广泛使用到汽车各部位，如仪表台及发动机支架、铝合金车轮、悬挂系统零件、保险杠防撞梁、汽缸、车门及热交换器等。铝代替钢制造汽车，可将发动机、车轮均减重约30%，铝质散热器（与铜制品相比）减重20%~40%，整车重量减轻30%~40%。这大幅度提升了汽车的速度和操控能力。
Aluminum alloy is widely used in various parts of automobile, such as instrument panel and engine support, aluminum alloy wheels, suspension system parts, bumper anti-collision beam, cylinder, door and heat exchanger. Aluminum instead of steel can reduce the weight of engine and wheel by about 30%, aluminum radiator (compared with copper products) by 20% ~ 40%, and the weight of the whole vehicle by 30% ~ 40%. This greatly improves the speed and handling ability of the car.

二高铁车体材料：
II. High speed railway body materials:
高铁是“用铝大户”，一列高铁车体材料的85%以上为挤压铝型材，整个车体由型材、板材，铸件与锻件焊接而成。高铁车厢不仅对刚性强度有高要求，也对车厢自重有限制条件。铝合金的密度只占钢材密度的1/3，但在添加一定元素形成合金后，强度却比钢合金更高，自然是选择！
High speed railway is a "large aluminum user". More than 85% of the materials of a train of high-speed railway car body are extruded aluminum profiles. The whole car body is welded by profiles, plates, castings and forgings. The high-speed railway carriage not only has high requirements for rigid strength, but also has restrictions on the self weight of the carriage. The density of aluminum alloy only accounts for 1 / 3 of the density of steel, but after adding certain elements to form alloy, the strength is higher than that of steel alloy. Naturally, it is a choice!
业内专家还指出，时速300公里以上的高速列车必 须使用铝合金材质，350公里以上的列车车厢除底盘外全部使用铝型材。
Industry experts also pointed out that high-speed trains with a speed of more than 300 kilometers per hour must use aluminum alloy, and all train carriages with a speed of more than 350 kilometers use aluminum profiles except the chassis.
三航空器材制造重要金属材料之一
III. one of the important metal materials for aviation equipment manufacturing
在同样强度水平下，铝合金可提供截面更厚的材料，受压时的抗屈曲能力更佳，成为经典的飞机结构材料。比如高强铝合金厚板作为主要承力构件，使用比例占飞机上总铝材用量的30%~35%。
At the same strength level, aluminum alloy can provide materials with thicker section and better buckling resistance under compression. It has become a classic aircraft structural material. For example, high-strength aluminum alloy thick plate, as the main load-bearing component, accounts for 30% ~ 35% of the total aluminum consumption on the aircraft.