Which material used in the track of maglev train?

track made of which material. or:track made of which material.or:The track is made of iron, they use electricity to make the tracks magnetic, positive

track made of which material.

or:track made of which material.

or:The track is made of iron, they use electricity to make the tracks magnetic, positive charged the train itself is negative charged. by using the lorentz force the train moves more about the lorentz force: http://en.wikipedia.org/wiki/Lorentz_force

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