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Cole-Parmer Solid Black Rubber Stoppers, Standard Size 11; 6/Pk
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Cole-Parmer Solid Green Neoprene Stoppers, Standard Size 11; 6/Pk
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德国WTW PH标液 STP 7 ,货号108708
-
甲醇中苯胺标样,62-53-3,analytical standard ,in methanol,
-
甲醛水质标样,50-00-0,analytical standard,1.41mg/L in water
-
甲醛水质标样,50-00-0,analytical standard,0.43mg/L in water
-
德国WTW电导率标液E-SET Trace 50ml/瓶
-
纳米氮化硼,10043-11-5,99.8% metals basis
-
THAM hydrochloride (reagent grade) | MedChemExpress (MCE)
-
Cole-Parmer Solid Green Neoprene Stoppers, Standard Size 8.5; 11/Pk
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