Active alumina extrusion carrier ZZC-324-E Physical Parameter No. Item Value Unit 1 Outside diameter 2/3/4/5 mm 2 Side crushing strength ≥ 15 N/mm 3 Specific surface area 170  ± 30 m2/g 4 Pore volume by nitrogen ≥ 0.4 ml/g 5 Water absorption ≥ 50 wt% 6 Bulk density 0.65 ± 0.05 t/m3 Chemical Composition Unit  ： wt% Al2O3 Fe2O3...