Whatman 滤膜 112803 Nuclepore径迹蚀刻膜 圆型, 293mm 0.05m 25/盒

Whatman 滤膜 112803 Nuclepore径迹蚀刻膜 圆型, 293mm 0.05m 25/盒 NUC PC 293MM 0.05uM 25/PK