Whatman 滤膜 6905-2502 GD/X 25针头式滤器,0.2m 聚醚砜 1500/盒

Whatman 滤膜 6905-2502 GD/X 25针头式滤器,0.2m 聚醚砜 1500/盒 GD/X 25/0.2 PES 1500/PK