Whatman 滤膜 10463525 ReZist针头式滤器 30mm, PTFE 1.0μm 500/盒

Whatman 滤膜 10463525 ReZist针头式滤器 30mm, PTFE 1.0μm 500/盒 REZIST 30/1.0 PTFE 500/PK