Whatman 滤膜 6783-1304 Puradisc 13针头式滤器, 0.45m PTFE 500/盒

Whatman 滤膜 6783-1304 Puradisc 13针头式滤器, 0.45m PTFE 500/盒 PURADISC 13/0.45 PTFE 500/PK