Whatman 滤膜 10463050 Spartan 30mm针头式滤器,再生纤维素, 0.45m 100/盒

Whatman 滤膜 10463050 Spartan 30mm针头式滤器,再生纤维素, 0.45m 100/盒 SPARTAN 30/0.45 RC 100/PK