NF S81-513-1994 钟表业.手表用镶宝石表盘质量检验的实用方法...
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NF S81-513-1994
钟表业。手表用镶宝石表盘质量检验的实用方法
Horology. Practical method for the inspection of the quality of jewelled pallet for watches.
钟表业。手表用镶宝石表盘质量检验的实用方法
Horology. Practical method for the inspection of the quality of jewelled pallet for watches.
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