Whatman 滤膜 29168216 Nuclepore Membrane Circles, 50 mm, 0.4 Micro meter pore size, 100/pk – PROMO

Whatman 滤膜 29168216 Nuclepore Membrane Circles, 50 mm, 0.4 Micro meter pore size, 100/pk – PROMO Nuclepore Membrane Circles, 50 mm, 0.4 Micro meter pore size, 100/pk – PROMO