Whatman 滤膜 6779-1304 Puradisc 13针头式滤器, 0.45m PVDF 100/盒

Whatman 滤膜 6779-1304 Puradisc 13针头式滤器, 0.45m PVDF 100/盒 PURADISC 13/0.45 PVDF 100/PK