metal arched roof for granary

1,Refers to the steel plate and hot-rolling, cold-formed or welded profiles connected by connecting pieces made of sustainable and transmission load structure.2,With a light weight steel structures, factory manufacture, installation fast, short construction period, seismic performance, investment recovery faster, less environmental pollution and other comprehensive advantages3,when compared with the reinforced concrete structure, but also have the "high, big, light" the development of three unique advantages in the global context, particularly the developed countries and regions, the field of steel structure in construction to be reasonable, and wide range of applications4,Metal arched roof isbased on substrate TstE28,34 which has perfect function. its Yield strength is more than 280MPa, Zinc content more than 180g/m2, Coating thickness is more than 20um, salt fog performance moer than 500h.