Whatman 滤膜 155845 Nuclepore径迹蚀刻膜 无PVP, 25 x 80mm 5.0m/100

Whatman 滤膜 155845 Nuclepore径迹蚀刻膜 无PVP, 25 x 80mm 5.0m/100 NUC PC 25X80MM PVPF 5.0uM 100