朋友，不知你注意到没有，随着我国现代化大都市的崛起、城市建设的日新月异，原先不大起眼，也末引起人们足够重视的门，愈来愈显现出绚丽的风采，在人们的心目中位置也愈显重要。从制作材料上分，有铝合金门、全玻璃门、钢门、木门；从建筑术语上分，有自由门、推拉门、平开 Friends, I do not know if you have noticed it. With the rise of China’s modern metropolis and the ever-changing urban construction, the doors that did not make much of an eye and attracted people’s attention have become more and more beautiful and in people’s minds. The location is also becoming more and more important. From the production materials points, there are aluminum alloy doors, full glass doors, steel doors, wooden doors; from the architectural terminology, there are free doors, sliding doors, open