The seven officials include the builder, the budgeter, the quality inspector, the safety officer, the material engineer, the supervisor and the material witness.

Each of the seven members of the construction industry corresponds to every post in the construction industry, and the requirements for corresponding occupations are to have corresponding qualification certificates, and each member represents a direction of employment.

1, the builder is the technical organization and management personnel at the grass-roots level. The main work content is to go deep into the construction site under the leadership of the project manager, assist the construction supervision, review the quantities together with the construction team, provide the specifications, models and delivery dates of the materials needed in the construction site, and do a good job in the acceptance visa and management of the materials on site.

2. Budget staff refers to the detailed or rough statistics of the most basic labor, materials, machinery and other expenses completed by a project, including taxes, profits, etc. Budgeter is also often called building budgeter or civil budgeter.

3. The direct supervisor of the quality inspector is responsible to the supervisor of the quality inspection department, who is responsible for the quality inspection of materials, products and equipment. The goal of quality inspector is to be responsible for the quality inspection of all materials, products and equipment of the company. Quality inspectors need training and research, pass the quality inspector qualification examination and carry the quality inspector qualification certificate.

4, security officer, responsible for the daily supervision and management of production safety, completes the regular and irregular safety inspection, control the occurrence of safety accidents.

5. Material engineer is a key position in construction enterprises. Key positions in construction enterprises must be certified, that is, on-the-job or post-transfer personnel must obtain corresponding post certificates before they can take up their posts. Therefore, material engineers need to take the professional examination of material engineers before they can take up their posts.

6, supervision personnel refers to the supervision business training, with similar engineering related professional knowledge, engaged in specific supervision work.

7, material witness is to do test sampling, in some places is the inspector or inspector and witness and documenter.