Whatman 滤膜 1960-052 膜过滤器, 不锈钢支撑, 25mm, 25ml容积 1/盒

Whatman 滤膜 1960-052 膜过滤器, 不锈钢支撑, 25mm, 25ml容积 1/盒 25MM SS MEM HLDR 25ML RES 1/PK