4288px x 2848px / JPG
Stairs leading up to the blue sky.
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- steel structure
- building structure
- building construction
- architecture building
- building wall
- building house
- construction house
- construction
- construction industry
- architecture
- outdoor wall
- tower
- construction safety
- steel
- exterior
- equipment
- iron
- building
- construction work
- safety work
- ladder
- background city
- background building
- blue city
- city sky
- industry
- safety
- house
- city technology
- city
- construction equipment
- building city
- outdoor
- metal
- background sky
