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