ShangHai ChengHang Industrial Co.,Ltd is specialized in the business of special steel products . Our company is mainly specialized in producing and provide of forged and rolled steel products. We can provide diameter up to 2500mm,with all kind of heat treatment conditions and all kind of machining facilities for very big pieces. All products quality assurance as per ISO9001:2000 quality standards. Main products are alloy steel,carbon steel, stainless steel, gear steel, bearing steel, tool steel, roller steel,high speed steel,etc.Products applications: machinery manufacture, ship building industry,engine, electric power and wind-engine system, petrochemical industry,aerospace industry.etc.Sincerely welcome customers all over the world and cooperation partner contact with us. We will provide high quality products and competitive prices with our excellent and professional services