sales good TC-30 ceramics alumina

TC-30 ceramics alumina TC-30 1.high quality & cheap 2.ISO9011-2000 certificated 3.alumina: white powder 4.specially for 99#ceramic Items spec size NX-1, Al2O3>=99.7% 325mesh Na20<=0.1% 500msh SiO2<=0.05% 800mesh Fe2o3<=0.03% 5mircon V.Density>=3.95g/cm3 3mircon alpha-Al2O3>=95% 2mircon originalsize1um 1mircon TC-30, Al2O3>=99.7% 325mesh Na20<=0.8% 500mesh SiO2<=0.05% 800mesh Fe2o3<=0.03% 5mircon V.Density>=3.94g/cm3 3mircon alpha-Al2O3>=95% 2mircon originalsize1um 0.5-1mircon