coating mass meaning in Chinese

镀层质量
皮膜质量
氧化膜质量

Tin coated sheet - tin coating mass testing method
镀锡钢板带镀锡量试验方法
Steel product - zinc coating mass testing method
钢铁产品镀锌层质量试验方法
Grade plating type designation of coating mass common coating mass
级别电镀方法镀层质量及常用称号
Both side different thickness coated mass
两面不均等锡层
Both side equally coated mass
两面均等锡层

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