For tractors,Website:http://www.eamachine.com, trucks, cranes, construction machines and other machines.Machining competences: Normal cutting, turning, milling, drilling. CNC cutting, turning, milling, drilling, threading, grinding, hobbing, etc.Materials:C45, Ck45, 20Cr, 20CrV, 20MnZ, 20MnV, 20CrMn, 20CrMnTi, 20CrMnMo, 17CrNiMo6, 34CrNiMo6, etc.Manufacturing ways: Roll forged or die forged, rough turned, heat treated, CNC turned, milled, drilled, grinding, hobbing.Heat treatment: Quenching+Tempering(Q+T), Hardening.