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金饰工艺画 金层含金量与厚度测定ICP光谱法 第1部分:金膜画
Gold craft picture -- Fineness and thickness of gold coating -- ICP solution spectrometric method -- Part 1: Print on gold film
价格：￥0.00
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金饰工艺画 第1部分:金膜画金层
Gold craft picture -- Part 1: Gold film on gold craft picture
价格：￥0.00
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出口陈设艺术彩陶检验规程
Rules for inspection of decorated pottery wares for ornament for export
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贵金属饰品质量测量允差的规定
Provision of permissible errors for measurement of precious metals adornment mass
价格：￥0.00
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首饰 金覆盖层厚度的规定
Jewellery-the provision of gold coatings tickness
价格：￥0.00
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首饰 银覆盖层厚度的规定
Jewellery-the provision of silver coatings tickness
价格：￥0.00
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首饰 金、银覆盖层厚度的测定 X射线荧光光谱法
价格：￥0.00
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