... 2. Advanced Roller Extrusion equipment line. 3.CE,ISO Cold Formed Steel Sections 1. STANDARD:GB/T3094-2000, ... Bared, Galvanized, Oiled, Color Paint, 3PE; Or Other Anti-corrosive Treatment.4. TECHINQUE:Hot rolled, Cold rolled, ERW, High-frequency ... .(2).Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs.(3).Construction engineering: steel structure construction, ...