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1. Whatman
Anodisc Membrane Filter / ¾Ë·ç¹Ì´½ ¿Á»çÀ̵å, ¸âºê·¹ÀÎ ÇÊÅÍ, ¾Æ³ëµð½ºÅ©
Cellulose Nitrate Membrane Filter / CN ¸âºê·¹ÀÎ ÇÊÅÍ
Nylon Membrane Filter / ³ªÀÏ·Ð ¸âºê·¹ÀÎ ÇÊÅÍ
Polycarbonate Membrane Filter / PC ¸âºê·¹ÀÎ ÇÊÅÍ