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镀锌添加剂
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钝化剂
钝化剂
HKS-920三价铬黑钝封闭剂
1.水溶性型封闭剂,操作容易,无剧毒物质,属环保型产品;
2.提高镀锌三价黑钝的光亮性及盐雾水平,减少滚镀件钝化后碰花现象;
3.优良的抗腐蚀能力,特别是碱性锌镀层,中性盐雾可达96小时以上。