1, machinery manufacturing factories: production of various mechanical equipment, parts and accessories, etc..
2, electronic factories: production of electronic components, electronic products and electronic equipment, etc..
3, textile factories: the production of a variety of textiles, such as cotton, linen, silk, woolen fabrics and so on.
4, chemical plants: production of chemical raw materials, chemical products, plastic products, rubber products, etc..
5, food processing factories: the production of a variety of food, candy, cookies, etc..
6, metal products factories: the production of a variety of metal products, such as doors, windows, stairs and so on.