1988年5月15～19日在昆明由鞍山黑色冶金矿山设计研究院等单位主持召开了《中小型露天矿设备使用和技术改造讨论会》。参加单位122个,其中金属和非金属矿山65个,设备制造厂26个,18个科研院校等,与会代表178人。会议收到论文共48篇,宣读17篇,由鞍山黑色冶金矿山设计研究院等12个单位组成的调研组,在1987年对冶金、化工及建材等部门的 1988 May 15 ~ 19 in Kunming from Anshan black Metallurgical Mining Design and Research Institute and other units chaired a “small and medium-sized surface mine equipment use and technological transformation seminar.” There are 122 participating units, of which 65 are metal and non-metal mines, 26 are manufacturing plants, 18 are research institutes, and 178 are represented. The conference received a total of 48 papers, read 17, from Anshan Black Metallurgical Mining Design and Research Institute of 12 units of the research group, in 1987 on the metallurgical, chemical and building materials sectors