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At present, the main material used for the frame of photovoltaic modules is aluminum alloy. However, due to the high pollution and energy consumption of aluminum alloy production, the country restricts the addition of aluminum alloy production capacity. With the rapid development of new energy vehicles and other fields, the demand for aluminum alloy is increasing, leading to a continuous rise in aluminum alloy prices. Polyurethane fiberglass composite materials have low density, high strength, corrosion resistance, and are lower in cost than aluminum alloys. They are rapidly replacing aluminum alloys in photovoltaic frames.