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连续热镀锌 锌铁合金钢板及钢带esales.baosteel.com/baosteel/standard2003/pdf/BQB420...热轧基板 长 度 钢 带 卷内径610 6.1.2 钢板及钢带的公称厚度指基板厚度和镀层厚度之和。
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