Machinery and equipment are an important part of the equipment industry. Generally speaking, machinery and equipment used for earthmoving engineering, road construction and maintenance, mobile lifting and unloading operations, and comprehensive mechanized construction of various building projects are collectively referred to as machinery and equipment. These 18 major categories of products include: excavating machinery, earthmoving machinery, construction hoisting machinery, industrial vehicles, compaction machinery, piling machinery, concrete machinery, steel reinforcement and prestressing machinery, decoration machinery, rock drilling machinery, pneumatic tools, railway track machinery, elevators and escalators, and special parts for construction machinery, etc.