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Coin or medal of coated with applicant to increase the hardness, scratch resistance and resistance to temperature as well as application of a noble metal surface
Coin or medal of coated with applicant to increase the hardness, scratch resistance and resistance to temperature as well as application of a noble metal surface
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机译:涂有申请人的涂层的硬币或奖章,以提高硬度,耐刮擦性和耐热性,以及涂覆贵金属表面
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摘要
Coin or medal is characterized in that the applicant is designed in such a way that the contours of the coins and medals in detail, to obtain the entire circumference and
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