但其保温性能高，保温效果好，导热系数低，节能环保。
But its insulation heat preservation effect is good, high, low thermal conductivity, energy conservation and environmental protection.
但其保温性能高，保温效果好，导热系数低，节能环保。
But its insulation heat preservation effect is good, high, low thermal conductivity, energy conservation and environmental protection.
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