Nta
1. Qhov saum npoo ntawm lub thawv yog kho nrog electrostatic tsuag.
2. Lub tank foob tsim ntxiv txhim kho nws qhov tshwj xeeb.
3. Muaj zog corrosion kuj.
Khoom siv: xim hlau phaj los yog galvanized ntawv tshuaj tsuag.
Tswv yim: tuaj yeem kho raws li qhov xav tau.






