Niaj hnub no, peb siv WLM Pulverizer Tshuab Test roj hmab hais rau peb cov neeg siv khoom hauv Sri Lanka
Cov yam ntxwv ntawm no WLM Pulverizer Tshuab,
Tsis muaj kev tshuaj ntsuam, hloov qhov zoo ntawm cov hmoov los ntawm rotating ceev, siab productivity, yooj yim tu, yog ib qho kev xaiv ntawm ntau tus neeg muas zaub
