A B C G H I L M N S T V Y Z A B C G H I L M N S T V Y Z ATO – 10nm PDF Aluminium (Al) 99.99% – 40nm PDF Aluminum Oxide (Gamma – Al2O3) 99.9+% – 20nm PDF Aluminum Oxide (Alpha – Al2O3) 99+% – 40nm PDF Aluminum Oxide (Alpha – Al2O3) 99.9+% – 50nm PDF Aluminium Oxide (Alpha – Al2O3) 99.+% – 60nm PDF Antimony Oxide (Sb2O3) 99.99% – 20-30nm PDF Spherical A-Phase Nano (AL2O3) 99.99% – 80nm PDF 4A Nano Zeolite – ≤100nm PDF