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由国家技术监督局1996年10月7口发布的两项新标准:珠宝玉石名称(G旷Y16552—1996)和珠宝王石鉴定(GB/T19553—1996)于1997年5月1日实施,自生效之日起,地质矿产行业标准DZ/7T0043—93和DZ/T0045—93作废。现将新标准简介如下:珠宝玉石名称GB/T19553—1996—定义:珠
Two new standards promulgated by the State Bureau of Technical Supervision on October 7, 1996: the name of jewels and jade jewelry (GB / T19553-1996) came into force on May 1, 1997, Since the date of the geological and mineral industry standards DZ / 7T0043-93 and DZ / T0045-93 void. The new standard is now as follows: Gemstone name GB / T19553-1996 - Definition: Beads