随着我国经济建设的不断发展，人民生活水平的日益提高，建筑行业发展较快。铝合金建筑型材及门、窗框用硬聚氯乙烯型材作为建筑装修的专用材料，得到了广泛的应用。铝合金建筑型材是建筑装配幕墙、门窗的专用型材，它具有强度高、重量轻、密封性好、易加工的特点，加之其... With the continuous development of our country’s economic construction, people’s living standards have been increasing and the construction industry has developed rapidly. Aluminum alloy building profiles and hard polyvinyl chloride profiles for door and window frames have been widely used as special materials for building decoration. Aluminium alloy building profile is a special profile for building assembly curtain wall, doors and windows, it has the characteristics of high strength, light weight, good sealing, easy processing, plus its...