Whatman 滤膜 6781-2510 Puradisc 25针头式滤器, 1.0m聚醚砜 200/盒

Whatman 滤膜 6781-2510 Puradisc 25针头式滤器, 1.0m聚醚砜 200/盒 PURADISC 25/1.0 PES 200/PK