{HEAD ~ Sheet steel pan forms} bent or rollformed to specific universal profiles allow the manufacture of {TAIL ~ concrete tread filled steel stairs} or precast concrete stairs 
{ HEAD ~ Sheet steel pan forms } bent or rollformed to specific universal profiles allow the manufacture of { TAIL ~ concrete tread filled steel stairs } or precast concrete stairs
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH