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滤纸 #615
GRAD.CYLINDERS, 500 ML, DIN-AS, STOPPERED, HEXAGONAL BASE, DURAN-GLASS, CONFORMITY CERTIFIED, BLUE
SUCTION TUBE, WITH CONE, BENT ST 24/29
SPHERISORB ODS2 5UM 10X3MM DROP-IN GUARDS 4/PK
水中硝酸盐氮溶液标准物质
岛津配件
琼脂培养基L
2XOF1202-40MD6 three phase型无油空气压缩机
桨轴,PTFE材质,直径? 9.5 mm,长650mm,含钢芯
ANALYTICAL FUNNELS, PP, ANGLE 60°, O.D. 45 MM, STEM DIA. 5 MM