Environmental zinc interlocking balance wheel: 1,Material:Hardened metals 2,Processing :stamping,broaching 3.OEM ... can provide in-house design, tool manufacturing, stamping and forging, secondary machining and coating service. Your inquiries of ODM/OEM products are ... :Pro/Engineer, Solid Works, Unigraphics, Auto CAD, (IGS, STP, STL and X-T)