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Semi-Rigid Glass Wool Board Air-Conditioning Duct Insulation with Good Thermal Insulation Performance24-48kg/M³, Find Details and Price about Themal Insulation Materials Glass Wool from Semi-Rigid Glass Wool Board Air-Conditioning Duct Insulation with Good Thermal Insulation Performance24-48kg/M³ - Hebei Liangpeng New Material Co., Ltd.