Henan Hongyu Special Castings Stock Co., Ltd. is a Hi-tech enterprise specializing in producing iron & steel casting and the parts & assemblies of wind power. At present,the annual production capacity is about 10000tons. A new workshop will put on production in September of 2008, and then the annual production capacity will be increased up to 25000 tons, and the weight of single casting can reach 45 tons.Besides widely used by many popular domestic companies, half of our products are exported to Germany, Spain,France, Italy,Czreh, USA, Canada, Japan etc. Main production facilities: Intermediate frequency furnace for melting ,Furan resin sand process for cast iron molding and VRH combined-hardening water glass sand for cast steel molding ,Direct-reading spectrometer for metal analyzing ,CNC machining center, numerical control boring machines and other machining equipments, 3D(three-dimensional) inspection instrument for dimension check . Main products: 1. All kinds of type grey cast iron, ductile cast iron, carbon steel and cast alloy steel, refractory and wearable and erode-resistant special cast iron and cast steel, valve, cast of pump, and parts etc. 2. Large wind power generator parts such as: Rotor hub, Base frame, Torque support, Planet carrier, Bearing housing, Gear housing, Sealing cover and other ductile iron parts. Which are mainly exported to some wind power manufacturers abroad. Quality assurance: ISO9001-2000, PED 97/23-EC.