Using superior quality insulating cotton and high density of glass wool board, it supplied excellent keep-warming effect for the whole collector and reducing the heat loss within maximum limit.
采用优质保温棉，高密度玻璃棉板，为整个集热器提供优秀的保温效果，最大限度的减少热损失。
Using superior quality insulating cotton and high density of glass wool board, it supplied excellent keep-warming effect for the whole collector and reducing the heat loss within maximum limit.
采用优质保温棉，高密度玻璃棉板，为整个集热器提供优秀的保温效果，最大限度的减少热损失。
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