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Yuan Dong Attends the Symposium at the Invitation of Hangzhou Jewelry City
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was invited by Hangzhou International Jewelry City to attend an academic symposium on November 19, 2013. At the symposium, Yuan Dong gave a speech entitled "International Situation and Identification of CVD Synthetic Diamonds" on the current situation of CVD synthetic diamonds that jewelers are concerned about and how to distinguish CVD diamonds from natural diamonds. In the speech, Yuan Dong introduced in detail the history of CVD diamonds, the international situation of CVD diamonds and the commonly used identification methods of CVD diamonds, and answered some questions raised by jewelers. Mr. Yuen's speech was well received by the participants, and all jewelers said they benefited.
19
2013
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Yuan Dong attended the 2013 Chinese Taipei Jewelry Symposium and delivered an important speech
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was invited to Taiwan to attend the 3rd General Meeting of the 8th China Gem Association and the 2013 Taipei Jewelry Symposium and delivered a speech entitled "International Situation and Identification Methods of CVD Synthetic Diamonds. In the speech, Yuan Dong introduced the history and principle of CVD synthetic diamond in detail, and made a detailed explanation on the current international situation of CVD synthetic diamond,
07
2013
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12
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was invited by the Hong Kong Diamond Association and the Hong Kong Jewellery Association to attend the CVD Diamond Seminar of the Hong Kong Diamond Association and the Hong Kong Jewellery Association on 1.13. At the seminar, Yuan Dong introduced the historical principles of CVD diamonds and the international status of CVD diamonds to the participants in detail, and introduced several commonly used methods on how to distinguish CVD diamonds from natural diamonds.
13
2014
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01
Yuan Dong Attends Changsha International Ore Expo and delivers an Important Speech
China (Changsha) International Mineral and Gem Expo is a national-level international professional exhibition approved by the State Council and co-sponsored by the Hunan Provincial People's Government and the Ministry of Land and Resources. The purpose of the exhibition is to "gather global resources, build international brands, expand exchanges and cooperation, and promote science and civilization". The 2nd International Ore Expo was held on May 15-5.20, 2014. Mr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was invited to participate in this expo and delivered a speech entitled "World Development Status and Identification Technology of CVD Diamonds". In the speech, Yuan Dong introduced in detail the development status of CVD diamonds in various countries in the world today and discussed how to identify them.
21
2014
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05
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, India Speech
At the invitation of the ChairmanVipulShan, Yuan, chairman of the board of directors of the the2ndEditionofIndiaGemandJewelleryMachineExpo(IGJME), atSuratfrom28-30November Dr. Li (SDA), and published a report entitled "theTechnologyofProducingandId
05
2014
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12
Dr. Yuan Zhizhong Lectures on Diamond Cutting Grading in Hong Kong
Dr. Yuan arrived in Hong Kong smoothly on December 12 and successfully completed his teaching at the HKDI Hong Kong Institute of Design of the Vocational Training Council VTC on the 13th, which received enthusiastic response from the students. As early as September this year, Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was sincerely invited by Hong Kong Gemological Association Limited (TheGemmologicalAssociationofHongKongLimited) to teach the Diamond Cutting Grading Course (MakeUpClassofDiamondCutGrade). The course has a limited number of places and priority is given
18
2014
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12
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