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Tianjin Yu Xiang technology co

通用试剂,高纯试剂,光谱试剂,基准试剂,优级试剂,生化试剂,色素试剂,色谱纯,气相色...

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  • Contacts：li_gang
  • Tel.:：02260289226
  • Mphone：18630822926
  • Fax：86-022-60289226
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