Whatman 滤膜 6766-1302 Puradisc 13针头式滤器, 0.2m PTFE 2000/盒

Whatman 滤膜 6766-1302 Puradisc 13针头式滤器, 0.2m PTFE 2000/盒 PURADISC 13/0.2 PTFE 2000/PK