Kauv yeeb nkab (SSAW) yog ib tug kauv seam carbon steel yeeb nkab ua los ntawm sawb hlau kauj raws li raw khoom, feem ntau warmly extruded, thiab welded los ntawm tsis siv neeg ob-xaim ob-sided submerged arc vuam txheej txheem. Nws yog tsuas yog siv hauv dej engineering, petrochemical, tshuaj, hluav taws xob fais fab, kev ua liaj ua teb ...
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