Whatman 濾膜 29168217 Nuclepore Membrane Circles, 47 mm, 0.2 Micro meter pore size, 100/pk – PROMO

Whatman 濾膜 29168217 Nuclepore Membrane Circles, 47 mm, 0.2 Micro meter pore size, 100/pk – PROMO Nuclepore Membrane Circles, 47 mm, 0.2 Micro meter pore size, 100/pk – PROMO