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铝门窗标注的尺寸系列相同，不一定铝门窗型材的截面形状∩和尺寸都相同相同尺寸系列的铝合金门窗型材，其截面形状和尺寸是相当繁杂的必须依据图样具体分析和对待铝门窗型材根据截面形状，区分为实心型材和¤空心型材，空心型材的应...
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