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在做形状复杂的外冷鉄时,要先做出模型再翻鑄,这样做既费工又費料。我厂朱一春同志改进了做冷鉄的方法。将白泥加水拌合(水不能
In the complex shape of the cold, it is necessary to make a model and then casting, it is both laborious and expensive. Comrade Zhu Yichun, our factory, improved his method of doing nothing. White mud add water to mix (water can not