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Spiral Groove PC Bar
Silvery Dragon yog lub chaw tsim khoom ntxov tshaj plaws ntawm pc bar nyob rau hauv Suav teb, thiab kuj yog tus tsim ntawm spiral drawing thiab high-frequency tshav kub kho tshuab rau PC bar.Peb kuj tau ntse tsim ntau yam alloy hlau pas nrig rau PC bar ua ke nrog domestic steel mills.Peb xa tawm ntau heev rau kev lag luam txawv teb chaws, thiab tseem tsim cov khoom lag luam sib sib zog nqus uas coj cov txiaj ntsig ntxiv.Nyob rau hauv 2008, peb ntse tsim pc bar rau high-ceev railway khiav phaj thiab sib sib zog nqus ua threaded pc bar....
