garnet sand being crushed from natural garnet rocks,our garnet sand has high hardness and sharper edges.With many times magnetic separation to remove the impurities,it will keep high qualified red grains.Then six times washing to remove the powder away，It is harmless to the environment and humans, which can meet the requirements of occupational health and safety.After screening of sifting bed,each size has uniform particle distributions. The sandblasting level of garnet sand is very high. So it can achieves SA3 blasting level with uniform surface roughness.