What are the main categories of machines?
Woodworking machinery, environmental protection machinery, grinding / sorting equipment, dryer and separator
Communication equipment, cleaning equipment, plastic / rubber machinery, water, electrical and heating facilities
Logistics equipment, mechanical and electrical equipment, metal processing machinery, filtration and purification equipment
Petroleum machinery, office equipment, sewing / clothing machinery, agriculture, forestry, animal husbandry, fishing machinery
Amusement equipment, electric heating equipment, business / finance, machinery, metallurgical machinery and equipment
