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We supply high quality CV Joint for car and trucks. One step forging forming at 800°C to avoid deformation caused by temperature difference thus ensure the internal C.V. Joint tracks are precise. The six equal division points are under a variance of 0.03mm (0.03 degrees), surface finish Ra0.8. Plus ground double circle arc ball track, the C.V. joint runs smoothly without noise or locking. Heat treatment equipments are made in Germany.