... Production specification: G10,G12, G14, G16, G18, G25, G40, G50, G80 NameCast steel gritchemicalsC0.95~1.05 %Mn0.35~1.20 ... sharp edges during shot basting process, it is particularly used for surface preparation applications(2)≥53-60HRC:With this hardness ... 3) ≥60HRC:High hardness, sharp edges remain during operation, mainly used for marble cutting,characters: stable and reliable performance,even size ...