... ,Explosive-sludge in metal melting,Dredging in dredger and course of rivers,and other fieldas.Type ZGHpumps are of high-head ... , good ability of NPSH, stable performance, easy assembly, liner and impeller can be made of wear-resistant metal, the discharge ... with strong abrasion high concentration for metallurgy, mines, coal and power plant, especially the large particles and cavitations conditions.