Transwell-COL-膜嵌套，6.5mm直径，3.0um孔径PTFE（聚四氟乙烯）膜，COL表面，灭菌，单个包装，1个/包/24包/箱，TW COL,6.5MM,3.0UM,PTFE,S,IND,1/24，型号3496，Corning，康宁