... to install, 3fire proof, 4good insulation Steel Structure Composite of section,beam,column,pillar.we ... quality section,beam,column,pillar.Different type of steel structure can be provided.we can desige special ... description1 mainly materials:H beam/C purlin/Z purlin/sandwich panel/ corrugated steel sheet2 easy to assemble and dismantle ... materails grades,etc. has different price. light steel structure