The invention is based on the discovery that if an initial thin layer is deposited from a dilute Cr thiocyanate bath, {HEAD ~ subsequent thick deposits} from a more concentrated, higher rate Cr thiocyanate bath have {TAIL ~ much better properties} of cohesion and surface smoothness 
have
The invention is based on the discovery that if an initial thin layer is deposited from a dilute Cr thiocyanate bath , { HEAD ~ subsequent thick deposits } from a more concentrated , higher rate Cr thiocyanate bath have { TAIL ~ much better properties } of cohesion and surface smoothness
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH