... , GGG45 3.with machining by CNC 4. powder coating wheel hub, parts for trailer,material grey cast iron GG25 and GGG45 (other material ... can be made)Weight: 3.5kgSurface: black paintingApplied software for specification drawings: Pro/E, Auto CAD, Solid Work 2001,CAXA ... , planning, grinding machines and assembly also available. 100x4 cast iron wheel hub