Whatman 滤膜 UN513UAQU UniPrep 非针头式滤器, 0.45m PVDF 1000/盒

Whatman 滤膜 UN513UAQU UniPrep 非针头式滤器, 0.45m PVDF 1000/盒 UP 0.45uM PVDF 1000/PK