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苏联「铸件焊补」的先进经验在降低废品率上起着重要的作用。目前,我们有些工厂正在学习这些先进经验,其中有的已经获得初步成功。北京第一机床厂模铸车间
The advanced experience of the Soviet Union in “casting welding repair” plays an important role in reducing the rejection rate. At present, some of our factories are learning these advanced experiences, and some of them have achieved initial success. Beijing First Machine Tool Plant Die Casting shop