The Advantage of metal building:1.Weight is lighter2.Working reliability is higher3.Excellent anti-shock and anti-impact ability4.High degree of industrialization5.Can be assembled accurately and rapidly6.Interior space is large7.Easy to make seal structure8.Recyclable9.Construction period shorter Specification of steel structure metal building: Item: steel structure buildingBase: Cement and Steel foundation bolt Primary Member: Light Steel Structure portal frame Material:Q345(S355JR),Q235(S235JR) steel H-beam:Welded or hot rolled Purlin:C&Z Purlin(C120-C320, Z100-Z200) Bracing:X&V or others made from Steel angle, round pipe ectSecondary Member: Roof,Window,Wall,Door Roof: Color corrugated steel sheet(Thickness 0.3-0.8) sandwich panel(Thickness 50-250) Window: Alluminum Alloy or Plastic Steel Wall: Sandwich Panel(EPS,PU,RW) Door: Rolling door or sliding doorSurface Treatment: Two layer of Anti-Rust panitingAccessories: Semi-transparent skylight belts, Ventillators, down pipe, Glavanized gutter, ectPacking: Upon your requestment or Regular packing for exporting Design Parameters: 1)Live load on roof(KN/M2)2)Wind speed(KM/H)3)Snow load (KG/M2)4)Earthquake load if have5) Doors and windows Details6)Crane (if have) ,Crane span, crane lift height, max lift capacity, max wheel pressure and min wheel pressure! 7)Size: width X length X eave height, roof slope8)Or according to your idea!