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https://www.es-color.com/products/aluzinc-roofing-sheet-gl/
Galvalume corrugated metal is an important alloy material often used in daily life. Galvalume steel plate is composed of Al Zn alloy structure, which consists of 55% Al, 43% Zn, and 2% Si solidified at 600 ℃. The whole structure is composed of Al Fe Si Zn, forming a dense quaternary crystal.