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Z 53—8型8毫米万能自动卷簧机原由济南铸锻机械研究所设计,曾由上海中国弹簧厂、北京第二弹簧厂和天津弹簧厂等分别作过自制自用设备的样机试制.后来,洛阳机床厂根据
Z 53-8 type 8mm universal automatic coil spring machine was originally designed by Jinan Casting Machinery Research Institute and was prototyped by Shanghai China Spring Factory, Beijing No.2 Spring Factory and Tianjin Spring Factory etc. After that, Luoyang Machine Tool Plant under