Whatman 滤膜 110413 Nuclepore径迹蚀刻膜 圆型, 13mm 5.0m 100/盒

Whatman 滤膜 110413 Nuclepore径迹蚀刻膜 圆型, 13mm 5.0m 100/盒 NUC PC 13MM 5.0uM 100/PK