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Stainless steel and aluminum-magnesium alloy sheets are both premium metal construction materials. While their prices are higher than that of PPGI, their corrosion resistance and lifespan significantly exceed that of PPGI. We conducted two experiments on XHH Nano Heat Insulation Steel-Al Composite Sheet (hereinafter referred to as XHH Nano Steel-Al),304 stainless steel sheets, and aluminum-magnesium alloy sheets: a hydrochloric acid evaporation test and a coal combustion test.
