Color steel coil not only has the excellent quality of steel in terms of flexibility, plasticity, pressure resistance, wear resistance, heat dissipation and high temperature resistance, but also in terms of color, finish, feel and so on.

 Although the current amount of hot dip galvanized substrate for building materials has a large capacity, there is a lack of good substrate such as zinc-free flat hot dip galvanized steel coil and zinc alloy coated steel coil.

The use of high-quality substrate, the surface, shape and dimensional accuracy of the substrate are more and more high requirements, outdoor use such as small zinc-coated hot dip galvanized steel coil, non-zinc-coated hot dip galvanized steel coil and zinc alloy hot plating coil; Indoor use such as electric galvanized steel coil, film cold rolled sheet and aluminum sheet coil.

If the color steel coil is used as a roof, it is recommended that its thickness be above 0.8mm, and the width of the roof should also be as small as possible, which can be conducive to drainage; If the building material is used as a wall, it is recommended that its thickness be below 0.8mm, and the width of the wall should be the larger the better, because for the wall, the lower the crest, the more beautiful it looks, so it is more practical. 

The total amount of steel coil refers to the sum of the area of outdoor stairs and walkways and the area of the house, of which the outdoor stairs and walkways should be calculated according to the sum of the natural projected area, and the area of the house should be calculated by the length and width of the external wall multiplied by the number of layers.

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