Through these steps, {HEAD ~ the coating} of {TAIL ~ glass ceramic} is formed on the metal substrate 
of
Through these steps , { HEAD ~ the coating } of { TAIL ~ glass ceramic } is formed on the metal substrate
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH