潮湿的盐雾环境和化学氧化膜的薄而软是引起腐蚀的主要原因。
It is mainly reason that wet and salt spray environment and thin film of chemical oxidation.
必须先做除锈及去氧化膜处理，一般使用化学抛光或电解抛光。
Must do derusting and to oxidation film processing, generally use chemical polishing or electrolytic polishing.
通过为不锈钢表面提供一个氧化环境的化学处理，钝化膜可以得到增强。
The passive film may be augmented by chemical treatments that provide an oxidizing environment for the stainless steel surface.
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