1 将原来的《平开铝合金窗》、《推拉铝合金窗》、《平开铝合金门》、《推拉铝合金门》四项标准 ,合并为《铝合金门》、《铝合金窗》两项国家标准 ,以便于用户的使用和门窗产品的发展。2 增加了门窗的风荷载技术方法以及玻璃强度计算方法 ,使高层建筑选用铝合金门窗有了科学的 1 will be the original “open aluminum alloy window”, “push and pull aluminum alloy window”, “Pingkai aluminum alloy door” and “push and pull aluminum alloy door” four criteria, merged into “aluminum alloy door”, “aluminum alloy window” Two national standards, in order to facilitate the use of users and the development of doors and windows products. 2 increased the wind load doors and windows technology and glass strength calculation method, so that high-rise building with aluminum doors and windows have a scientific