1. low price but high and good service 2.Solid work, Pro/E, AutoCAD CAM 3. high accuracy, good surface finishing 1.torsion bar is for chassis of train ,truck,and automoible and ect.2.solid work,pro/E good surface finishWe are a profession auto parts manufacturer ,and we can process all kinds of metal parts in accordince with the detail requirements of our customers.The workmanship of torsion bar ...