... best choice for sapphire grower
2)Two types:powder and
ball 3)Passes ISO9001:2008 1 ... :20082~4mmActivated Alumina Ball2~4mm Activated alumina
ball has much micro-paths, so the specific ... oxide, acetic acid, alkali etc.
2~4mm Activated alumina
ball defluorinated just as the anion exchange resin, ... gas, especially in the drinking water defluorination .
2~4mm alumina
ball Molecular Formula: Al2O3 • nH2O (0