走出城市的大街小巷,可以发现,遍地林立的高楼大厦中,绝大部分使用的是铝合金门窗,一些住户在装修房屋时,也把原来的木质门窗换成铝合金门窗.然而,也就在我们将铝合金门窗当作“高档”门窗大加推广使用时,在一些发达的国家里,它早已“退居二线”,代替它的是被称为绿色建材的新型节能建筑材料——塑钢门窗.塑钢门窗作为传统门窗的换代产品,它在国外已获得大量发展,在德国、奥地利等国,塑钢门窗已占门窗市场的50%,美国的发展势头也很猛.在我国,北方市场发展也极为迅速,大连、青岛等地,塑钢门窗已有相当的市场,南方也正日益新兴起来.塑钢门窗发展迅速的原因,与它优越的性能是分不 Walking out of the streets of the city, it can be found that most of the high-rise buildings that are built everywhere are made of aluminum alloy doors and windows. Some tenants also replaced the original wooden doors and windows with aluminum alloy doors and windows when they renovated the house. However, When we use aluminum alloy doors and windows as a “high-end” door and window to promote it, it has already “retreated to the second line” in some developed countries. Instead it is a new type of energy-saving building material called green building materials. Doors and windows. Plastic steel doors and windows as a replacement product of traditional doors and windows, it has obtained a lot of development abroad, in Germany, Austria and other countries, steel doors and windows have accounted for 50% of the doors and windows market, the United States is also very strong development momentum. In our country, the development of the northern market It is also extremely rapid. Dalian, Qingdao and other places have steel-plastic doors and windows that have a considerable market, and the South is emerging. The reasons for the rapid development of plastic-steel doors and windows are inconsistent with its superior performance.