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 cohesion and {TAIL ~ 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 cohesion and { TAIL ~ surface smoothness }
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