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河北省经委、机械局、铸造学会于1982年20~25日,在河北省宣化召开了“张家口地区膨润土试验研究与应用现场会”。参加这次会议的有河北省煤炭、冶金、机械、轻工和化工系统的工厂、大专院校、科研部门共100个单位130名代表。应邀出席会议的还有北京、天津、山西、内蒙、福建、浙江、云南、广东、山东、江苏等兄弟省市的41个单位47名代表。沈阳铸造研究所、济南铸锻机械研究所、陕西省铸造学会亦应邀派代表出席了会议。
Hebei Province Economic Commission, Machinery Bureau, Foundry Society in 1982 from 20 to 25, held in Xuanhua, Hebei Province, “Zhangjiakou Bentonite Experimental Research and Application of on-site meeting.” There were 130 representatives of 100 units in factories, colleges, universities and scientific research departments of coal, metallurgy, machinery, light industry and chemical systems in Hebei Province. Also invited to attend the meeting were 47 delegates from 41 units in Beijing, Tianjin, Shanxi, Inner Mongolia, Fujian, Zhejiang, Yunnan, Guangdong, Shandong and Jiangsu provinces and cities. Shenyang Foundry Research Institute, Jinan Casting Machinery Research Institute, Shaanxi Foundry Society was also invited to send representatives attended the meeting.