Pre engineered steel structure building is a Green economy building system, which is formed by the main
structure (H-section steel for beam/column, C channel steel or Z channel steel for purlin), substructure
(Round steel bar or Angle steel for bracing, Round steel tube for tie bar, Angle steel for angle brace), roof
and wall system (using sandwich panel or single steel sheet), door and window system. Pre engineered steel
structure building building is widely used as warehouse, workshop, hangar, shed, etc..