... the development of the electric power,metallurgy and coal industries,our works has designed and developed Series ZGB(P)Up-to-date Generation ... with large capacity,high head,multi-stages in series to remove ash&sludge and to deliver liquid-solids mixture,based on ... the corrosion of seawater,salt and mist,and electrochemical corrsion;The pump can be operated in series with multi-stage within permissible ...