We manufacture and supply high quality steel grit,steel shot around the world.Duoleng has been a leader in the abrasives market,an ISO9001:2008 certified and SAE standard.the only producer of bearing alloy steel grit in china.steel shot available in sizes from S70 to S930,ideal for surface cleaning of new steel to remove mill scale.alloy steel grit available in sizes from G10 to G120 and three levels of hardness(GP,GL,GH).