康宁corning 3399 TW,HTS,6.55MM,3.0UM,S,BK,12/12
HTS TRANSWELL-24膜嵌套 6.5mm膜直径 3.0um孔径PC(聚碳酸酯）膜 灭菌 散装 12个/包 1包/箱 24164.16