GE Whatman Teflon聚四氟乙烯PTFE膜TE38
沃特曼Whatman10411305特氟龙PTFE滤膜0.45
GE Whatman10411405聚四氟乙烯PTFE膜0.2um
whatman WTP聚四氟乙烯PTFE滤膜 1um25mm
whatman WTP聚四氟乙烯 PTFE滤膜 0.5um47mm
Whatman ST68醋酸纤维素膜CA膜 0.8um47mm
Whatman沃特曼醋酸纤维素膜CA膜ST69 1.2um
Whatman醋酸纤维素滤CA膜 OE67 0.45um110mm
GE Whatman醋酸纤维素滤CA膜 OE67 0.45um
Whatman醋酸纤维素滤膜 OE67 0.45um47MM
GE whatman醋酸纤维素CA膜OE66 0.2um142mm
沃特曼whatman醋酸纤维素膜OE66 0.2um110mm
whatman醋酸纤维素膜CA膜OE66 0.2um灭菌
沃特曼whatman醋酸纤维素膜CA膜OE66 0.2um
GE Whatman沃特曼 RC60再生纤维素膜1um
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