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50-200毫米厚度墙体岩棉夹芯板,用于组合门冷藏室和酒店使用防火环保50-200mm Thickness Wall Rock Wool Sandwich Panel for Sectional Doors Cold Room & Hotel Use Fire Resistant Eco-Friendly
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50-200毫米厚度墙体岩棉夹芯板,用于组合门冷藏室和酒店使用防火环保50-200mm Thickness Wall Rock Wool Sandwich Panel for Sectional Doors Cold Room & Hotel Use Fire Resistant Eco-Friendly
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