... 3 H beam C purlin, window, sandwich panel 4 ISO9001 1500sqm Double Sloped Galvanized Color Coated Steel Shed ... , single floor, double floors! 3)Height: 3-10m 4)Slope: 1/20, 1/10,1/5,1/3 5 ... glad to bulid steel structre as your given drawing.If you need we design for you, pls supply us ... /H) 3)Snow load (KG/M2) if have 4)Earthquake load if have 5)Crane (if have) ,Crane span, crane lift height, ...