Reagents, companies in Grīziņkalns
ŪdensBoss, LTD
Krišjāņa Barona 136, Rīga LV-1012
technology, Manganese greensand, Synthetic Greensand; ( KMnO4 reagent) Aeration with air without additional reagents , Reagents for iron removal and descaling: salt, potassium permanganate, KmnO4, . .