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我厂磨浮车间的３~＃和４~＃系统于１９９５年进行了技术改造，把３~＃系统的７~＃球磨机和４~＃系统的１０~＃球磨机均由原来的φ２１００ × ３０００小球磨机改为现在的φ２８００ × ３８００大球磨机，实现了扩大再生产的需求。７~＃球磨机和１０~＃球磨机的电机轴和小齿
3 ~ # and 4 ~ # system of our factory frosted workshop carried out technological innovation in 1995. The 7 ~ # ball mill of 3 ~ # system and 10 ~ # ball mill of 4 ~ # system are from the original φ2100 × 3000 small Ball mill to the current φ2800 × 3800 large ball mill, to achieve the expansion of reproduction needs. 7 ~ # ball mill and 10 ~ # ball mill motor shaft and small teeth