Structure Steel Fabrication, Steel Structures Construction, Metal Warehouse manufacturer / supplier in China, offering Factory Price Q345b ASTM A36 Clear Span Bolt-up Expandable Heavy-Duty Pre-Engineered Warehouse, Factory Price ASTM A36 Ss400 Fireproof Anti-Corrosion Weather-Resistant, Seismic-Proof Clear Span Warehouse, Factory Price Ss400 Hot Rolled Pre-Cut Pre-Punched Pre-Galvanized Pre-Assembled Plug-and-Play Bolt-up Warehouse and so on.