Humans have a long history of using lifting tools to replace manual labor. Historical records indicate that the *jiegao* (a counterweighted lever) and the *lulu* (a windlass) were already in use in China around 1600 BC; the former served as a lifting lever, while the latter was a precursor to the hand-cranked winch. Lifting tools also saw widespread application in ancient Egypt and Rome.
The development of modern construction machinery began following the invention of the steam engine; by the early 19th century, steam-powered excavators, road rollers, and cranes had appeared in Europe. Subsequently, the invention of internal combustion engines and electric motors accelerated the evolution of construction machinery, with even more rapid progress occurring after World War II. Given that the variety, quantity, and quality of such machinery directly impact a nation's industrial production and infrastructure development, countries attach great importance to this sector.
Today, wireless control capabilities can be found on a wide range of construction machinery.
