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超弱规范埋弧自动焊是再生曲轴十分有效的新技术，本文介绍了此技术与传统方法的主要区别、特点、专用设备及实际应用的效果。
The ultra-weak standard submerged arc welding is a very effective regenerative crankshaft technology. This article introduces the main differences between this technology and the traditional methods, features, special equipment and the effect of practical application.