表面处理：镀锌(蓝锌、黄锌及镀锌上蜡)、镀镍、磷化黑。
Surface processing: plate the zinc (blue zinc, yellow zinc and plate the zinc up the wax) and plate the Ni, point phosphate to turn black.
综述了化学镀镍层黑化工艺方法，影响膜层黑度的因素以及黑膜的性能特点。
Blackening processes for electroless nickel deposits are reviewed. Factors influencing the shades and properties of the layer are described.
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