Lub submerged arc vuam technology siv nyob rau hauv loj-li kev ua yeeb nkab welded yeeb nkab, kev siv tsheb siab siab thiab haus luam yeeb me me.Nws yog tsuas yog siv nyob rau hauv siab lub nkoj, yeeb nkab haum manufacturing, nqaj thiab kem, cov hlau cov qauv engineering.Txoj kab uas loj loj ntsa Welded Yeeb Welded Yeeb Welded yeeb nkab phab ntsa Welded Yeeb Welded Yeeb Nkab Pauv Cov Yeeb Nkab Hlau.Tus txheej txheem thawj coj loj ntawm txoj kab uas loj loj thawj phab ntsa yog GB / T3091-2008, GB / T9711.1-1997 thiab API 5L cov qauv.