Whatman 滤膜 10400821 ME28 混酯纤维素膜, 圆型,1.2m, 100mm 50/盒

Whatman 滤膜 10400821 ME28 混酯纤维素膜, 圆型,1.2m, 100mm 50/盒 ME28 1.2uM 100MM 50/PK