60201Pall Biodyne B正电荷尼龙6,6转印膜7*8.5cm ¥1713.00 PLBC07610Millipore Ultracel再生纤维素预切超滤膜片3KD76MM ¥2945.00 110608 Cytiva Whatman Nuclepore聚碳酸脂膜纳滤膜0.6um25mm ¥868.00 110611whatman细胞培养聚碳酸脂膜圆片型2um25mm 10418806 ¥944.00 110612进口whatman趋药性膜3um25mm 10418306 ¥994.00 MSTG25E3 PALL除内毒素离子交换膜针头式过滤器 ¥3722.00