Whatman 滤膜 6879-2504 GD/X25针头式滤器0.45m 聚丙烯 1500/盒

Whatman 滤膜 6879-2504 GD/X25针头式滤器0.45m 聚丙烯 1500/盒 GD/X 25/0.45 PP 1500/PK