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