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本文主要介绍我公司设计、制造用于水轮发电机组关键部件连接螺孔(M56～M160)大型丝锥的结构及其使用特点。
This article mainly introduces the design and manufacture of large tap for our company’s key components connecting screw holes (M56 ~ M160) for hydro-generator sets and its using features.