... ,C/Z channel,corrugated steel sheet,etc.* Products&Service Scope:Design&Engineering Service, Steel Building,Space Frames, Portable Cabins, Tubular Steel ... frames, secondary framing, roof & wall materials, Tempcon (sandwich) panels* Engineering Design Software:AutoCAD,PKPM,MTS,3D3S, Tarch, Tekla Structures(Xsteel)V12.0 ...