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由全国建材工业进出口信息网和国家建材局技术情报研究所组织的“全国建材及非金属矿进出口信息交流研讨会”于1991年10月28～31日在桂林市召开。全国21个省、市、区的108个单位的153名代表参加了大会。国家建材局
The “National Conference on Information Exchange for Building Materials and Non-metallic Minerals Import and Export” organized by the National Building Material Industry Import and Export Information Network and the National Institute of Building Materials Technology Information Institute was held in Guilin from October 28 to October 31, 1991. 153 representatives from 108 units in 21 provinces, municipalities and districts attended the conference. National Building Materials Bureau