... to assemble and dismantle.7) Main materails: H beam/C purlin/Z purlin/sandwich panel/ corrugated steel sheet8) Life: Over 35 years ... grades,etc.a.Component: H-Column, H-Beam & C/Z-Purlinb.Material grade and performance of steelCarbon structural steel ... buildings.b. Commerce: office building,mall, hotel, exhibition hall, hospital.c. Public: the social activity center, school, library, stadium, church, ...