Hangar High strenght,anti-seism,impact resistance Heat-insulation, soud resistance, anti-water, fire-proof if you need: Opinions 1)steel structure building, 2)steel frame building, 3) modular house, mobile house4) prefab house, container house, villa, low cost residence5)workshop, warehouse, shed, canopy6) hangar, sports centre, shopping mall,storage7)steel H-beams, C&Z purlin, steel angle, ...