... Availablebolts, screws, nuts, rivets, stem nuts, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels ) bearing, bearing seat ... , yellow passivation, gold passivation, galvanizing, satin, etc.Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding and assemblyQC ... and is the only one can do all the precision fittings and fasteners in china with the high ...