Whatman 滤膜 AV125NPUPSU Autovial非针头式滤器 12ml,0.45m聚砜预无滤层/50

Whatman 滤膜 AV125NPUPSU Autovial非针头式滤器 12ml,0.45m聚砜预无滤层/50 AV12 0.45UM PES N/PRE 50/PK