... 12.5QU80130130803263.69QU1001501501003888.96QU12017017012044118.10Rail track is the main component of railroad track.Rail track's function is to lead ... the wheels, and transfer to the sleeper.Rail track's must provide wheels with continuous and smooth and the least resistance ... -Beam, Galvanized Steel Coil, Hot Rolled Steel Plate, Cold Rolled Steel Plate, Mild Steel Plate, Structure Steel, difference ...