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