Whatman 滤膜 170607 Nuclepore径迹蚀刻膜 金色, 0.4m 25mm 50/盒

Whatman 滤膜 170607 Nuclepore径迹蚀刻膜 金色, 0.4m 25mm 50/盒 NUC PC 25MM GOLD 0.4uM 50/PK