| 气象色谱仪买家 |
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| | Hello , how are you? Please send proposal with price to distributor and technical catalog for: ITEM 1 GAS CHROMATOGRAPH COUPLED TO A MASS SPECTRUM (CG / MS) COMDETECTORS: FID, ECD, NPD, TCD /...
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| | | | | Hello, My client is a company in the field of printing flexible packaging materials "Rotogravure". They often use Ethyl Acetate Solvent in Nitro Cellulose ink or Polyethylene Adhesive dilution. They s...
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