美国 sterlitech PCTE (Polycarbonate) Membranes – Gold-Coated Polycarbonate Membranes PCTE(聚碳酸酯)膜-镀金聚碳酸酯膜
Sterlitech PAN Membranes 聚丙烯腈膜 Polyacrylonitrile (PAN) Laminated Membrane Filter, 0.2 Micron, 47mm, 100/Pk