... Special purpose steel4Wall & roof can be used by steel sheet, EPS sandwich panel, rock wool sandwich panel & PU sandwich panel. ... Length,Width,Roof height and Eave HeightRoof and Wall PU,EPS,Rock Wool sandwich panelDoor and Window PVC or Aluminum ... PRODUCTION FLOWFinished H section beam and columnWALL & ROOF PANEL PRODUCTION EPS WALL/ROOF SANDWICH PANELROCK WOOL/FIBER GLASS WALL/ ROOF SANDWICH ...