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一、建筑门窗行业的现状 建筑门窗是建筑物的重要部件。我国建筑钢门窗产品是在本世纪初开始使用与生产的。解放以后,随着国民经济的恢复和发展,于六十年代中期,又自行设计和生产了用冷轧带钢,通过高频管轧机生产的带有型腔的空腹窗料,称为25系列。这种钢窗问世以后,在国家“以钢代木”政策的实施过程中,在优化资源配置中发挥了重要作用,成为当时建筑门窗市场上的主要产品,约占全国门窗需要总量的60％以上,形成钢门窗产品一统天下的局面。国家实行改革开放以后,国民经济和基
First, the status of the building doors and windows industry Building doors and windows are important components of the building. China’s construction steel doors and windows products were used and produced at the beginning of this century. After the liberation, with the recovery and development of the national economy, in the mid-1960s, it also designed and produced cold-rolled steel strips and fast-growing window pockets with high-pressure tube mills, called 25 series. . After the advent of such a steel window, the country played an important role in optimizing the allocation of resources during the implementation of the “steel-to-wood” policy, becoming the main product of the construction door and window market at that time, accounting for about 60 of the total demand for doors and windows in the country. More than %, the formation of steel door and window products dominate the world situation. After the country implemented reform and opening up, the national economy and the