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1
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-
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氮气
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原材料
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-
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-
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-
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20.0
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瓶
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30天
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-
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-
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2
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-
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氦气
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原材料
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-
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-
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-
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4.0
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瓶
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30天
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-
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3
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-
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45号钢
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原材料
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规格:500mm*1000mm*1000mm
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2.0
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块
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30天
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-
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