基于含铬处理对环境影响的考虑，世界范围内都在积极开发有效的替代技术，用于铝合金腐蚀保护从而代替铬酸盐转化处理。
Environmental concerns relating to chromate -containing treatment employed for the protection aluminum alloys from corrosion have led to an intensive search for their replacement in the world.
通常铬含低镉的硝酸不需进行铬酸盐处理。
Usual chromic and nitric acid bright dips for cadmium are not chromate treatments.
通常铬含低镉的硝酸不需进行铬酸盐处理。
Usual chromic and nitric acid bright dips for cadmium are not chromate treatments.
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