1. Steel grit:G10,G12,G14,G16,G18,G25,G40,G50,G80,G120 ... blasting, surface cleaning 3. SAE standard 4. Longer lastin 1. Steel Grit G10, G12, G14, G16, G18, G25, G40, G50, G80, G1202 ... Polygon, Spherical, hemispherical, flat-shaped particles<5% Crack 30% cast Steel Grit