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    2. Melting and Casting The iron is melted at high temperatures and then cast into tee-shaped molds. This step requires precision to ensure that the tees will have the desired dimensions and structural integrity.


    Moreover, aerodynamic considerations and local weather conditions also dictate the size and profile of metal roofing sheets. Areas prone to high winds or heavy snowfall may benefit from larger or thicker sheets that can withstand environmental pressures.