Swingarm precision casting Material: St52-3 Weight: 5kg --50kg Different sizes Spare part for railwaytrain Silicasol process Soluble glass process.Accuracy: class CT4 CT7,surface roughness up to Ra1.6 Ra6.3Applied software for specification drawings: Pro/E, Auto CAD, Solid Work 2001,CAXA, UG, CAD/CAM/CAE Design and alloy selection flexibility Materials: Stainless steel, carbon steel, alloy steel, heat resistant steel ISO9001 approved Produced by experienced technical staff Small orders accepted . Production capacity: more than 8,000MT per year Perfect test ability Special heat treatment: anneal, quenching, normalizing, carburizing polishing, plating CNC Machining:CNC lathes, milling, drilling, planning, grinding machines and assembly also available