Construction machinery is an important part of the equipment industry. 
Generally speaking, all the necessary mechanical equipment for earthwork construction, pavement construction and maintenance, mobile lifting and unloading operations and various construction projects are called construction machinery.

It is mainly used in national defense construction projects, transportation construction, energy industry construction and production, mining and other raw materials industry construction and production, agricultural, forestry and water conservancy construction, industrial and civil construction, urban construction, 
environmental protection and other fields.