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30m*0.25mm*0.15umAgilent DB-WAX聚乙二醇（PEG）气相毛细管柱（122-7031）
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30m*0.25mm*0.15umAgilent DB-WAX聚乙二醇
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30m*0.32mm*0.15umAgilent DB-WAX聚乙二醇
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30m*0.25mm*0.25umAgilent DB-WAX聚乙二醇
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30m*0.25mm*0.50umAgilent DB-WAX聚乙二醇
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30m*0.25mm*0.25umAgilent DB-WAXetr
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30m×0.25mm×0.25umAgilent DB-WAX 聚乙二
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30m*0.25mm*0.50umAgilent DB-WAXetr
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60m*0.25mm*0.25umAgilent DB-WAX聚乙二醇