Опубликовано в "Бизнес, Бизнес", язык - English. 6 страниц.
PFS(poly ferric sulphate), light yellow powder or deep red liquid, is a kind of inorganic high polymer flocculating agent, which features are high density of alumen ustum, high speed of precipitation,high rate of pollution removal and low amount of sewage sludge, and etc. Еще
