Whatman 滤膜 6818-1304 Puradisc 13针头式滤器, 0.45m GMF 500/盒

Whatman 滤膜 6818-1304 Puradisc 13针头式滤器, 0.45m GMF 500/盒 PURADISC 13/0.45 GMF 500/PK