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2,3-二甲基苯甲酸
倒置亚克力容量瓶架
GLASS BEADS, SOLID, DIAMETER: 8 MM
ST-SOCKETS, PRECISO, ST 55/44 acc. to DIN 12249 FORM E, ?=60 MM, L=180 MM, W.TH.=3,2 MM
(定制产品)5种元素ICP-MS混标,Ca/Fe/Mg/K/Na,500mg/L溶于5%HNO3
硝酸纤维素膜,0.8um
2-氨基-5-硝基苯甲酸
Wash-Bottle, PE-LD, GL 18, wash-bottle cap, PP, tall shoulder, 50 ml
DISSECTING NEEDLES, STRAIGHT STEEL, HALF SPEAR SHAPED, WOODEN HANDLE
丙酮中蝇毒磷