Whatman 滤膜 10407713 MicroPlus-21 NC膜0.45m黑色网格灭菌47mm/100

Whatman 滤膜 10407713 MicroPlus-21 NC膜0.45m黑色网格灭菌47mm/100 MP21 ST 0.45uM 47MM 100/PK