monobloc concrete tie

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• Railroad tie — While wooden ties dominate North American railways, concrete is widely used in other parts of the world. A railroad tie/railway tie (North America), or railway sleeper (Europe) is a rectangular item used to support the rails in railroad tracks.… …   Wikipedia

• farm building — ▪ agriculture Introduction       any of the structures used in farming operations, which may include buildings to house families and workers, as well as livestock, machinery, and crops.       The basic unit of commercial agricultural operation,… …   Universalium