... with high quality control. Engineer helps to instruct installation. Easy to assemble and dismantle. Main materails: H beam/C purlin/Z purlin/sandwich ... Sheet: colored steel tiles or colored steel sandwich panel per ... shed, Exhibishion Hall,Office buildings, Garage,Multy-story building,Hanger,Agricultral storage,Logistic centers,and all kinds of steel materials.,etc. ISO China standard prefabricated ...