Moto part-camshaft:
1.The camshaft top is treated with chilling process and the surface of support shaft is treated with RF hardening.
2.Copy grinding of high presicion is used for processing camshaft contour line and tested bu full automatic computer tester, with all the technical indexes meeting the requirement of JB/T6728-93. 
3. It is proved by practice that it can stand a higher contact stress, and is shock resistance, wear resistance.  It is an ideal auxiliary matching product for a high speed engine.