... Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment.4. TECHINQUE:Hot rolled, Cold rolled, ERW, High-frequency welded. ... structure construction, sports venue, three-dimensional garage, exhibition hall.(4).Decoration: wrought iron doors and windows, outdoor advertising, pavilion ... 5-3.590*2003.0-16.020*501.5-4.090*2202.5-16.020*1002.0-3. ... 090*3004.0-16.025*501.5-4.0100*1102.0-12.030*401.5-6. ...