Why Engineers LOVE Steel: 5 Game-Changing Advantages!

 Mega-spans: 100m+ without columns ← Hello, open-plan factories!

 Precision: Laser-cut parts fit within 1mm tolerance (BIM-driven)

 Recyclability: 90%+ recovery rate → True circular economy 

 Seismic champ: Sichuan earthquake-proof schools stood firm

 Cost-saver: 30% cheaper vs. concrete for large spans

 Fun fact: Empire State Building’s frame rose 4.5 floors per week!