Whatman 滤膜 6798-2510 Puradisc 25针头式滤器, 1.0m PTFE 1000/盒

Whatman 滤膜 6798-2510 Puradisc 25针头式滤器, 1.0m PTFE 1000/盒 PURADISC 25/1.0 PTFE 1000/PK