Tom qab peb lub Tsiab Peb Caug Hauv Suav Tebchaws, cov khoom siv raw tau nce ntau thiab ntau dua.
Tsis tsuas yog cov kev lag luam steelmaking, tab sis kuj tseem cov khoom lag luam yas nyob rau hauv qhov teeb meem nyuaj.
Peb cov nqaij qaib netting siv hauv polyethylene hais feem ntau, peb yuav sim peb qhov zoo tshaj plaws los pabcuam koj tus nqi zoo.
