Forged car rims are made with a lot heat and a lot of pressure. they are basically pressed into a mold and thus forged rims are about 300% stronger then cast. Also less metal can be used for forged so the rim is lighter. Cast rims are either poured into a mold and let cooled or the molten liquid is vaccumed into a mold, this allows for less air bubbles around the edges. So forged rims are lighter and stronger then cast rims.
The faces on forged irons would wear out faster than cast ones, but depending on use could be many years.
difference between one- ones
ones in ones out
WRT metal cranks, there's really no difference in production between a metal crank and a comparable tool. They can be cast or forged. Some have a hollow core to reduce weight. carbon fiber ones are trickier. Layers are laid up in molds, incl threaded inserts for pedals. Resin is injected(unless the cloth is pre-preg) then the whole thing is cured in an oven or autoclave.
ones a bird and ones an insect...
ones a girl ones a hermaphrodite
Ones a bear and ones a plant
ones tall and ones short
ones inside ones outside
ones in the front, ones in the back
ones gay
ones bigger ones smaller