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Talboys 固定位置夹,两爪单调,中号
250mL定碘烧瓶
二乙二醇甲乙醚
L-谷氨酸标准品
通用型石墨垫,内径0.4mm
α-甲基-D-苯丙氨酸
DAVIES-CONDENSERS, CONE ST 24/29, JACKET LENGTH: 250 MM
DESICCATORS NOVUS, WITH ST-STOPCOCK AND CONE ST 24/29, INTERCHANGEABLE KNOBBED LID, MADE OF DURAN
30x3mm 1.9um Hypersil GOLD SAX
标样-甲醛