Duoleng New Material co.,ltd engaged in providing an extensive range of quality steel grit and steel shot manufactured with high quality and long lasting features which we have in extensive demand in the market we are well know in the market for our quality products in affprdable prices and on time deliveries.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.