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