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