2.0 to 2.8mm molecular sieve 10 years experience for 3A, 4A,5A, 13X drying,absorbent,cleaning ect. ISO9001:2000 product2.0 to 2.8mm ... carrier gas (as when used in dehydration), or heating under high vacuum.3A (pore size 3 Å): Adsorbs NH3, H2O, (not ... -0.6023-240.3-0.5Absorbent for removal of thioalcohol in aviation kerosen and the liquid hydrocarbon Package can meet individrual requirements 2.0 to 2 ...