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门窗动滑轮，是一种用在门窗上的动滑轮。功效是省劲。根据门窗路轨动滑轮的功效，我们可以更为省劲得开闭门窗，并且相比于别的传统式的开窗通风方法，铝门窗五金定制的滑轮不但噪音低，并且种类多种多样，能够具备很好的应用体会。

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