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: Henan Yunai Industrial Co., Ltd. specializes in the research and development, production, and sales of roof daylighting, energy-saving, and environmentally friendly materials. It is a domestic provider of FRP daylighting composite panels, PC polycarbonate panels, and building roof daylighting system solutions, with production bases located in Shanghai Jiading, Henan Kaifeng, and Zhejiang Ningbo. The company's main products include PC sun panels, PC endurance panels, FRP daylighting panels, fiberglass anti-corrosion tiles, ventilation louvers, and fire smoke exhaust skylights.