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