Metal curtain wall is widely used in curtain wall building in China, especially in facade decoration project with unique shape, because of its various colors, light surface material and good processing performance, which can adapt to various complex facade decoration design characteristics. The surface materials used by the metal curtain wall are mainly as follows: aluminum composite board, single-layer aluminum board, aluminum honeycomb board, fire prevention board, sandwich insulation aluminum board, stainless steel plate, color coated steel plate, enamel steel plate and so on. The main reason why the metal plate falls off is that the connection design of the metal plate and the keel is unreasonable and the installation is not firm.
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