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    Product name Specifications Packing Unit price / yuan
    Tannic acid standard solution
    Potassium iodate standard solution
    Potassium iodate-potassium iodide standard solution
    P-nitrobenzoic acid standard solution
    P-nitrophenol standard solution
    Nitrogen oxide standard liquid
    Diantipyrine methane standard solution
    Oil bromine valence standard liquid 100ml
    Lithium bromide standard solution 50ml
    Cobalt chloride standard solution 500ml
    2.4-Dichloro standard liquid 50ml
    Isobutanol isoamyl alcohol standard solution 5ml
    Isobutanol standard solution 50ml
    Isopropanol-ethanol standard solution 50ml
    Cumene standard solution 50ml
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