国产精品久久久久久AV福利,日本丰满少妇XXXX,无码国产精品一区二区免费式影视,国产精品免费看久久久无码

whatman 19mm聚碳酸酯（PC）過濾膜

Nuclepore Track-Etched Polycarbonate (Hydrophilic) Membrane, circle, 0.4 μm pore size, 19 mm

孔徑：0.4um

Nuclepore track-etched polycarbonate (hydrophilic) membrane, circle, 0.4 μm, 19 mm

• Low protein binding and low extractables ensuring no sample contamination.
• High chemical resistance and good thermal stability for a wide range of samples.
• Low, consistent ash and low tare weights.
• Smooth flat surface for good visibility of particles.

whatman 19mm聚碳酸酯（PC）過濾膜

Nuclepore track-etched polycarbonate membranes are manufactured from high-quality polycarbonate film and have sharply defined pore sizes, high flow rates, and excellent chemical and thermal resistance. The membranes have a smooth flat surface and exhibit very low levels of extractables.

訂購產(chǎn)品信息：