Whatman 滤膜 10407114 MicroPlus-21 NC连体膜0.45m黑色网格灭菌50mm/400

Whatman 滤膜 10407114 MicroPlus-21 NC连体膜0.45m黑色网格灭菌50mm/400 MP21 STL 0.45uM 50MM 400/PK