Prof. Li Zhihong, Secretary General of Superhard Materials Branch of China Machine Tool Industry Association, and Jia Pan, the Prime Minister of Nanyang Zhongnan Diamond Co., Ltd., set off on April 15, 2007 to Rome, Italy, to participate in the second international diamond seminar held by Element Six in Rome. The seminar will be held from April 19 to 20, 2007, for two days.
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