Whatman 滤膜 112105 Nuclepore径迹蚀刻膜 圆型, 142mm 0.1m 25/盒

Whatman 滤膜 112105 Nuclepore径迹蚀刻膜 圆型, 142mm 0.1m 25/盒 NUC PC 142MM 0.1uM 25/PK