Whatman 滤膜 111114 Nuclepore径迹蚀刻膜 圆型, 47mm 8.0m 100/盒

Whatman 滤膜 111114 Nuclepore径迹蚀刻膜 圆型, 47mm 8.0m 100/盒 NUC PC 47MM 8.0uM 100/PK