... hangar/garage/chicken shed,container house, prefabricated home,sandwich panel, welded H steel,C/Z channel,corrugated ... frames, secondary framing, roof & wall materials, Tempcon (sandwich) panelsSpecificationsprefabricated metal building a) Light weight, easy to ship ... sheet. 7. Wall panels and roof panels can be corrugated sandwich board or corrugated steel single panels. Primary Competitive Advantages ...