1. Name of goods and services: non-academic education services.

2. Short for goods and services: life service.

3. Including: preschool education, various trainings, speeches, lectures, reports, etc.

As far as technical training is concerned, the details are as follows:

1, tax code: 3040 1020000000000.

2. Name of goods and services: technical consulting services.

3. Including: providing business activities such as feasibility demonstration, technical prediction, technical testing, technical training, special technical investigation, price analysis report and professional knowledge consultation for specific technical projects.

Extended data:

Structural form: the structural form of the classification coding system.

In group technology, there are three forms of code structure: tree structure (hierarchical structure), chain structure and mixed structure.

1, the code bits in the tree structure are subordinate, that is, except the feature code in the first code bit, the exact meaning of other code bits should be determined according to the previous code bits. As shown in figure 4-1a. Tree-structured classification and coding system contains a lot of feature information, which can describe the features of parts in detail, but its structure is complex and it is not convenient to code and identify codes.

2. Chain structure is also called parallel structure or matrix structure, and each feature code in each code bit has an independent meaning, regardless of the front and back bits, as shown in Figure 4- 1b). Chain structure contains less feature information than tree structure, but its structure is simple and easy to code and identify. The auxiliary code of OPITZ system belongs to chain structure.

3. There are the above two structures in the mixed structure system. Most classification and coding systems have mixed structures, such as Opitz system and KK system.

Baidu Encyclopedia-Classification and Coding System