The invention relates to the field of seamless steel pipe production methods, in particular to a seamless steel pipe hammering and reducing technology.
本发明涉及无缝钢管的制造方法领域，尤其是一种无缝钢管锤击减径工 艺。
The invention relates to the field of seamless steel pipe production methods, in particular to a seamless steel pipe hammering and reducing technology.
本发明涉及无缝钢管的制造方法领域，尤其是一种无缝钢管锤击减径工 艺。
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