Commercial Steel Buildings:
1).Main Steel Frame: Welded or Hot Rolled Steel H Section;
2).Bracing System: Square Hollow Section and Circular Hollow Section;
3).Surface Treatment: Rust-proof Painting with 2-4 Layers;
4).Steel Material: Q235 & Q345;
5).Shipment: by Open-top Containers;
6).Span: The max span is 50m between supporting bases.
7).Endurance: 30 years;
8).Earthquake Resistance: 9 Grade.