Main steel structure (columns and beams) 1.Steel Q345(S355JR) or Q235(S235JR)H shape 2. Straight cross-section or Variable cross-section Sub steel structure 1.Material Q235(S235JR) steel 2.Bolt connections. Anti-rust painted or galvanized 3. Bracing:X-type or V-type or other type bracing made from angle, round pipe, etc 4. Purlin:C or Z type: Size from C80~C320, Z120~Z300 Roof Sandwich panel(PU/EPS/fiberglass/rook wool) or Colorful steel tile Wall Sandwich panel(PU/EPS/fiberglass/rook wool) or Colorful steel tile Doors Steel rolling shutter or others Windows Alu. Alloy window,or others Edge Cover Steel sheet 0.5mm thickness Bolts M24,M22,M16 embedded bolts,intensive bolts,galvanized ordinary bolts,high-strength bolts, etc Others options Skylight panel,Roof ventilator,Down pipe,Galvanized,Crane,sanitary Products Foundation Cement and steel foundation bolts