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图片内容是:28a槽钢
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阿坝槽钢
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详情-槽钢_07.jpg
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电力专用q345b低温槽钢 低合金热轧槽钢 q345b角钢 槽钢 规格齐全
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佳木斯28a槽钢】来电厂商欢迎您
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28a#低合金槽钢 28b号q355b低合金槽钢 16mn28c#国标低合金槽钢