The time of tint on copper surface is decreased without changing the color, lustre and wearability of the film.The tint on the surface with more complicated shape was also studied primarily.

  • 在保证色泽,耐磨性不变的情况下,缩短了在纯铜表面着古铜色的时间,并对形状较为复杂的构件初步研究了其着色方法。
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