Product description: Main Steel: Column and beam(H-section), square steel tube,C/Z purlin Conection Method: Welding or hot rolled or cold rolled Wall&Roof: EPS,Rockwool,PU sandwichpanel, Corrugated steel sheet with fiber glasswool Door: Rolled up door or Sliding door(sandwich panel) Window: Plastic steel or Aluminum alloy window Surface: Hot dip galvanized or painted.(all colours we can do) Crane: 5T,10T,15T,ect. Bolt: Foundation bolt(M24,Q235), High strengthen bolt(M20X70) , Normal bolts(M16x50;M12X30)