Whatman 濾膜 29168199 ME25/21 STL White, 0.45 Micro meter, 3.1 mm Black Grid, 47 mm, 400/pk – PROMO

Whatman 濾膜 29168199 ME25/21 STL White, 0.45 Micro meter, 3.1 mm Black Grid, 47 mm, 400/pk – PROMO ME25/21 STL White, 0.45 Micro meter, 3.1 mm Black Grid, 47 mm, 400/pk – PROMO