六价铬
面议
- 北京恒元启天化工技术研究院
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- 进口
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- 现货
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- 0
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A single sample for dilution to 2 litresSample TargetConcentrationCr VI.............. 45 - 880 µg/L
A single sample for dilution to 2 litresSample TargetConcentrationCr VI.............. 45 - 880 µg/L
