Packing Mall molecular sieve type 4A is an alkali alumino silicate, 4A molecular sieve has an effective pore opening of about 4 angstorms(0.4nm). 4A zeolites are available in beads of 1-2mm(10x18mesh), 2-3mm(8x12mesh),2.5-5mm(4x8mesh) and as powder, and i
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