... Transportation Project Type: Coal-fired power stations Steel Structure Tonnage: 16,000 tons Steel Grade: Q235 and Q345 Box Column ... & Welded H-beam Structure Coating: painted Project Team Project ... , ChinaStandardGB,ASTM,DIN,JIS,BS,AISITypeHeavy Duty, steel structure, Steel ConstructionWeldingSubmerged arc welding, carbon dioxide arc, electro ...