{HEAD ~ The metal substrate} prepared in {TAIL ~ step} is immersed in the slurry and subjected to cathodic polarization at a voltage of 100 400 V, thereby glass particles are deposited on the metal substrate surface 
prepared in
{ HEAD ~ The metal substrate } prepared in { TAIL ~ step } is immersed in the slurry and subjected to cathodic polarization at a voltage of 100 400 V , thereby glass particles are deposited on the metal substrate surface
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH