聚乙烯中微量元素(低值)
面议
- 北京恒元启天化工技术研究院
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- 现货
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Certified valuesAs............................. 3.93 mg/kg Cl ..............................92.9 mg/kg Pb ..............
Certified valuesAs............................. 3.93 mg/kg Cl ..............................92.9 mg/kg Pb ..............