Beichen cov khoom tau txais kev pabcuam rau cov ntawv thiab ntawv zeb hauv nees nkaum xyoo dhau los, thiab yeej cov neeg siv khoom ntseeg siab.
Ob theem siab ceev nqus tsev vacuum rau Stora Enso
Tag nrho cov teeb tsis sib xws hydrocyclone rau Chenming Ntawv
Ceramic dewatering caij rau Nine Dragons Ntawv