Setaccio molecolare 3A (0,3 nm, 3 Å)Setaccio molecolare 3A (0,3 nm, 3 Å), in pastiglie, Ø 3 - 4 mm (0.12 - 0.16 in)
: Thermo Fisher Scientific
: Avantor
: Honeywell Chemicals
: Merck