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本文介绍了一条软再生和硬再生联合使用的树脂砂生产线，既可满足一般铸铁件的生产，同时，又能在原材料不变的情况下满足球铁及铸钢件的生产。
This paper presents a resin sand production line that combines soft recycling with hard recycling to meet the needs of normal cast iron parts while meeting the requirements of ductile iron and steel castings with unchanged raw materials.