Steel structure installation requires certain qualifications to ensure safety and quality. Generally, steel structure installation units need to meet the following qualification requirements:

1. Construction qualifications:
It is necessary to have corresponding construction enterprise qualifications, usually general contracting qualifications for construction projects or professional contracting qualifications for special projects (such as professional contracting qualifications for steel structure projects).

2. Technical staff:
There should be professional technical personnel, including registered structural engineers and construction personnel with relevant experience.

3. Safety production license:
A valid production safety license must be held to ensure safety management during the construction process.

4. Quality management system recognition:
In some cases, companies also need to pass quality management system certification such as ISO 9001.

5. Industry norms and standards:
Follow relevant national and local steel structure installation standards and building construction codes.

Before installing steel structures, be sure to check whether the construction unit has the above qualifications to ensure the safety and quality of the project.