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              Product name Specifications Packing Unit price / yuan
              Sodium tungstate standard solution 500ml
              Fusel-free oil ethanol standard liquid 5ml
              Formaldehyde buffer absorption stock solution 100ml
              Sulfur dioxide saturated liquid 500ml
              Formalin solution 0.05 500ml
              Composite electrode replenishment solution 3.3 mol/L 500ml
              Waste scavenger 250g 250g
              Gram's dye liquor 100ml
              Chrome azurol S mixture 10ml
              Glacial acetic acid-triethylamine mixture 500ml
              Barium diphenylamine sulfonate saturated solution 100ml
              Magnesium chloride saturated solution 500ml
              Residual chlorine colorimetric solution 100ml
              Iodine monochloride-acetic acid solution 0.2 mol/L 500ml
              Acetaldehyde acetal furfural ethanol solution 50ml
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