Whatman 滤膜 6779-0404 Puradisc 4针头式滤器, 0.45m PVDF 100/盒

Whatman 滤膜 6779-0404 Puradisc 4针头式滤器, 0.45m PVDF 100/盒 PURADISC 4/0.45 PVDF 100/PK