Flow formed is the rotary stamping of the rim part on the basis of low pressure casting, which changes the internal structure of the metal at the rim part, so that the molecules are arranged in a fibrous shape with a higher density, thereby reducing the overall weight of the wheel hub. JWHEEL Flow formed wheel hub is directly extruded on the die by a thousand-ton press. The advantages are uniform density, smooth and delicate surface, thin wall and light weight.