The classification codes of economic industries are as follows:

1. Classification and codes of national economic industries (GB/4754-2111). ?

2. A collapse of agriculture, forestry, animal husbandry and fishery. B mining industry; C manufacturing industry.

3. D Electricity, heat, gas and water production and supply industries.

4, e construction industry; F wholesale and retail trade; G transportation, warehousing and postal services.

5. h Accommodation and catering industry; I information transmission, software and information technology services.

6, j financial industry; K real estate industry; L leasing and business services.

7, m scientific research and technical services; N Water conservancy, environment and public facilities management.

8. o Resident services, repairs and other services; P education; Q health and social work.

9. r Culture, sports and entertainment; S public management, social security and social organizations; T international organization.

Introduction of industry code:

Industry code is the specific code of industry classification. According to certain scientific evidence, the organizational structure system of units or individuals engaged in national economic production and management is divided in detail, such as forestry, automobile industry, banking and so on.

determine the nature of the industry according to the main economic activities of the unit. When the unit is engaged in an economic activity, the industry of the unit is determined according to the economic activity; When the unit is engaged in more than two kinds of economic activities, the industry of the unit is determined according to the main activities.