Since its introduction in1970, the B70 concrete sleeper has been the most widely used prestressed concrete sleeper in the Deutsche Bahn rail network. It is flexible in use, can bear a load of 25 tonnes and allows speeds of up to 250 km/h. Despite that it weighs just 280 kilograms. The B70 is also produced by Rail.One on a large circulation plant in the Coswig plant near Dresden.
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