BH-88 trivalent chromium sulfate plating process was chosen.
选用BH- 88硫酸盐三价铬镀铬工艺。
Formate-A acid system was a sulfate trivalent chromium plating process with low concentration.
甲酸-羧酸a体系是一种低浓度的硫酸盐三价铬电镀工艺。
Galvanized to trivalent chromium and hexavalent chromium passivation passivation process.
镀锌为三价铬钝化及六价铬钝化工艺。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
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