Whatman 滤膜 10407324 ME25/20混酯连体膜0.45m,5mm黑色网格灭菌50mm/400

Whatman 滤膜 10407324 ME25/20混酯连体膜0.45m,5mm黑色网格灭菌50mm/400 ME25/20 STL 0.45uM 50MM 400/PK