... /hangar 1 Professional design 2 Anticorrosion 3 H beam C purlin, window, sandwich panel 4 ISO9001 1500sqm Double Sloped Galvanized Color Coated Steel ... roofing panel: EPS or rock wool sandwich panel, or corrugated color steelSkylight panel is used to day lightingSteel plastic window and ... slope; Single span, double-span, Multi-span, single floor, double floors! 3)Height: 3-10m 4)Slope: 1/20, 1/10,1/5 ...