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full automatic three rollers thread rolling machine #machine #thread #steel #automatic #metal

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Rod threading machine for j-bolt u-bolt foundation bolt anchor bolt sag rod for mass productionПодробнее

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how to make high-quality thread on thread rolling machine for threaded rod thread bar production

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thread cutting machine for foundation bolt sag rod anchor bolt j bolt for mass productionПодробнее

thread cutting machine for foundation bolt sag rod anchor bolt j bolt for mass production

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