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一、1985年以来钢材价格变化情况1985年以来石家庄市金属材料公司的钢材价格调整了41次。现将其中有代表性的几个品种价格变化的情况及其价格变动时间做图如下(附钢材价格变化图)。图中时间坐标5代表1985年5月,其余类同。
1. Changes in steel prices since 1985 Since 1985, the steel prices of Shijiazhuang Metal Materials Company have been adjusted 41 times. Now the price changes of some representative varieties and their price changes are graphed as follows (with steel price changes). The time coordinate 5 in the figure represents May 1985 and the rest are similar.