(SAE Standard, ISO9001Certificate ) High-quality alloy steel grit with high density and less deficiency and fine microstructure and optimum mechanical characteristics, which gives steel grit the appropriate resilience, fatigue resistance, high cycling application rate, less consumption, and greatly upgrades the abilities of surface treatment to metals in the abrasive blasting cleaning as a result of its angular shape as well, besides these usage, Hardness＞60HRC,also can developed for granite gangsaw cutting with high cutting performance, and abrasive resistant.