... made up of stainless steel and corrosion-resistant materials use in freshwater,seawater, wastewater treatment SJ-T-1.1CE certificateIt is ... into and dispersed throughout water uniformly to be dissolved,in order to achieve oxygenation rapidly and cycle completely5,produces ... ,produce enough oxygen,and eliminate harmful and poisonous gas in the bottom.7,Azotize underwater sediments,prompted the residual ...