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焦锑酸钾 ,AR,99.0%
荧光素-6-异硫氰酸酯,同分异构体II(含少量丙酮)
京尼平
12-氨基-4,7,10-三氧杂十二烷酸叔丁酯
银、砷、钡、铍、铋、镉、钴、铬、铜、锰、钼、镍、锌、钒、铅、铊元素混标
SPARE PART, SCREW FOR WITOPET, PW SERIES
DISPOSABLE PIPETTES, 1 UL, END TO END, CONFORMITY CERTIFIED, 1 PACK = 250 PCS./CYLINDER
resteck EPA521&522专用活性炭小柱
瓶盖w/PTFE聚四氟乙烯/硅树脂 密封垫 用于8mm 螺旋口样品瓶1000个/包装
HYPERSIL SILICA 5UM 10X3MM DROP-IN GUARDS 4/PK