metal structure building 1. Low cost,fast construction 2. Stable metal structure 3. More than 50 years' service life 1.Metal Structure Building Main ComponentsMain FrameH beamPurlinC or Z section steelBracecross support, angle brace, brace between purlin/column/beamBoltanchor,ordinary,high strenght boltRoof &Wallsandwich panel or steel plateSandwich panel materialsEPS, polyurethane, rock wool, ...