ISO 9001:2000 alumina activated White sphere, odorless, tasteless,non-toxic, insoluble in ... .45≤7≤0.75≥280≥0.40≥1605-7mmISO 9001:2000 alumina activatedWhite sphere, odorless, tasteless,non-toxic,insoluble in waterand ... in particle size,smooth at surface ,with high, ISO 9001:2000 alumina activated