Whatman 滤膜 6766-1304 Puradisc 13针头式滤器, 0.45m PTFE 2000/盒

Whatman 滤膜 6766-1304 Puradisc 13针头式滤器, 0.45m PTFE 2000/盒 PURADISC 13/0.45 PTFE 2000/PK