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　　China grams of energy-conservation disappear sound tuber pipe 1 type series made up of three floors. Layer high density fire-retardant to defend mouldly , dampproofly , defends……

　　China grams of energy-conservation disappear sound tuber pipe 1 type series made up of three floors. One layer of top layers while making up for fire-retardant black……
　　China grams of energy-conservation disappear sound tuber pipe 1 type series made up of three floors. Layer for glass fine aluminium foil of compounding etc……