在1982～84年期间工业原铝生产量将减少150000～200000吨,使产业部门不能维持较好的库存水平,交货周期延长进而价格上涨,铝的供应情况将比以前更加紧张。计划和建造炼铝厂非一朝一夕所能实现,在1984年之前,产业供应情况不会有多少变更,要到1985年、1986年,扩建和新建项目相继完成,方可增产260000～810000吨,使产业储备水平达1.7～2.5个月。 During 1982-84 industrial primary aluminum production will be reduced by 150,000-200,000 tons, so that the industrial sector can not maintain a good inventory level. The delivery cycle is prolonged and the price goes up. The supply of aluminum will be more tense than before. It is not possible to plan and construct an aluminum smelter overnight. Before 1984, there will not be any major changes in the supply of the industry. It is not until 1985 and 1986 that expansion and new construction projects will be completed one after another to increase production by 260,000 to 810,000 tons. The level of industrial reserves of 1.7 to 2.5 months.