Whatman 濾膜 10401106 NC45硝酸纖維素膜,圓型, 0.45m 25mm 100/盒

Whatman 濾膜 10401106 NC45硝酸纖維素膜,圓型, 0.45m 25mm 100/盒 NC45 0.45uM 25MM 100/PK