金覆盖层 meaning in Chinese

rolled gold covering

The application of gold coating has been a common practice throughout the history of man .
应用金覆盖层在人类历史中早已是一种司空见惯的事了。
Jewellery - the provision of gold coatings tickness
首饰.金覆盖层厚度的规定
Metallic coatings - determination of porosity in gold coatings on metal substrates - nitric acid vapour test
金属覆盖层金属基体上金覆盖层孔隙率的测定硝酸蒸汽试验