Whatman 滤膜 6820-1316 Puradisc 13针头式滤器, 1.6m GF/A 100/盒

Whatman 滤膜 6820-1316 Puradisc 13针头式滤器, 1.6m GF/A 100/盒 PURADISC 13/1.6 GF/A 100/PK