Whatman 滤膜 112104 Nuclepore径迹蚀刻膜 圆型, 142mm 0.08m 25/盒

Whatman 滤膜 112104 Nuclepore径迹蚀刻膜 圆型, 142mm 0.08m 25/盒 NUC PC 142MM 0.08uM 25/PK