What materials were used to build the Petronas Towers?

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Tags

1. #smart
2. #materials
3. #glass
4. #perfectly
5. #safety
6. #structures
7. #system
8. #aluminum
9. #reinforced
10. #telecommunications
11. #total
12. #coordinates
13. #smoke
14. #building
15. #concrete
16. #control
17. #power
18. #environmental
19. #lighting
20. #windows
21. #floors
22. #steel
23. #supply
24. #built
25. #towers
26. #facade