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30x2.1mm 3um Hypersil GOLD C4
DROPPING PIPETTES (EYE DROPPERS) MADE OF GLASS, W. RUBBER TEAT, 80 X 7/8 MM
PRESSURE SCREW PVDF 5P.
正己烷中7种多氯联苯套标(完全符合:HJ904-20空气多氯联苯混合物的测定-气相色谱法)
(+)-δ-生育酚
三苯基甲醇
2-Phenylbutyric Acid
搅拌匙,PE-HD材质,钢芯,260x7 mm
Chemical waste system, PE/PP, without lid, 10 l
捕集管