Applications of galvanized square tube pipes include:

1. Construction Engineering: Used for structural supports, frameworks, scaffolding, etc.

2. Machinery Manufacturing: Used for making frames and components of machinery.

3. Transportation Facilities: Used for making highway guardrails, bridge railings, etc.

4. Agricultural Facilities: Used for greenhouse structures, agricultural machinery.

5. Municipal Engineering: Used for making municipal facilities like lamp posts, sign posts, etc.

6. Furniture Manufacturing: Used for making metal furniture frames and structural parts.

7. Warehouse Racking: Used for making warehouse racks and logistics equipment.

8. Decorative Projects: Used for decorative frames, railings, etc.

These application scenarios fully utilize the advantages of galvanized square tube pipes, such as corrosion resistance, high strength, and long service life.