With the latest boom in the construction industry, moving heavy articles - like metal planks, tons of cemented boulders and even colossal containers - has become mandatory. Such objects may need to be hoisted up to the top floor of a skyscraper; they may be required to be carried over rough mountainous terrains to build roads; and they may also be necessary for building a long bridge over water. In short, every aspect of modern engineering activities necessitates the handling of heavy objects.