We are ISO certified professional manufacturer of casting products (ductile iron, gray iron casting & steel casting) in North China ,with process of sand casting, resin casting, shell casting and investment casting. Mainly we manufacture: (1) Austempered Ductile Iron(ADI) casting: accessories for railway, locomotive, machine, vehicle and heavy automotive industry. E.g. suspicion arm, control arm, sprocket, roller and so on, with unit weight from 1kg to 200kg. (2)Ductile iron and grey iron casting for industrial, mining, railway, engineer and vehicle. e.g. wheel and hub, flange, machine spare parts,pump,insulator,hydraulic valve,gate valve,globe valve,ball valve,plg valve,bottom outlet valve,butterfly valve,check valve,safty valve and so on. （3）Sewer products e.g. manhole cover & frame, sewer cover & frame, gully grating & frame, tree grid and so on. (4) Ni-Resistance products such as shell for rolling mill. (5) Cast steel products for engineer, industrial ,railway and machine, such as wheel, hub, supporter and so on. Consisting of Casting Factory, Heart treatment Factory and Machining Factory, products can be well manufactured and machined in our foundry, we manufacture a wide range products with weight from 0,5kg to 4000kg.. Because of its excellent quality and good management, we have obtained the TUV & PET certification. any further information,Pls contact us by ironcastingsjzATaolDOTcom,thanks!