Whatman 滤膜 6870-2550 GD/X 25针头式滤器, 5.0m Nylon 150/盒

Whatman 滤膜 6870-2550 GD/X 25针头式滤器, 5.0m Nylon 150/盒 GD/X 25/5.0 NYL 150/PK