'Cranes cranes' diaporamas de présentation

Multipurpose Use of Cranes

A crane is a mechanical equipment made up of wire ropes, hoist, chains and sheaves. This machine is generally used for lifting purpose. It is even used to lower materials and move them horizontally. Cranes are employed in the transport industry mainly for loading and unloading of freight. Cranes were first invented by the Greeks. With the introduction of cast iron and steel after the industrial revolution, the designs of cranes got modified.

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