Whatman 滤膜 6874-1302 GD/X 13针头式滤器0.2m PTFE 150/盒

Whatman 滤膜 6874-1302 GD/X 13针头式滤器0.2m PTFE 150/盒 GD/X 13/0.2 PTFE 150/PK