金属保护 meaning in English

metal coating
metal protection

Product description : ipod nano metal case
产品名称： ipod nano金属保护壳
Product description : ipod metal case
产品名称： ipod金属保护壳
Standard test method for rust protection by metal preservatives in the humidity cabinet
金属保护剂防锈性能试验法
Standard specification for asphalt - base emulsions for use as protective coatings for metal
金属保护涂层用沥清乳液的标准规范
Standard test method for rust protection by metal preservatives in the humidity cabinet
在湿润箱中用金属保护剂防止金属生锈的标准试验方法

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