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Having been providing high quality phenolic foam insulation board, Hongte has earned a good reputation among many competitors based in China. pre-insulated duct panel is the main product of Hongte. It is diverse in variety. Ventech rigid fiberglass duct board has a professional design. It is designed by our specialists who retain the design process internally to create an artistic look and cost-effective packaging products. This product is very resistant to deformation. It can withstand repeated stretching because of its excellent fatigue durability.
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