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1·I think a better quality rust preventative paint could have been used and this problem would not exist.

我认为如果使用质量好的防锈漆就不会产生这个问题。

2·Recent developments include a dry to touch water soluble rust preventative that outperforms the traditional products in salt spray and high temperature-high humidity test.

最近开发的新产品包括“快干型”水性防锈剂，相对于传统产品，新产品的优点是：在盐雾测试、高温高湿测试方面有突出的表现。