1,10years marine dredging pump maker 2,Max Q:25000m3/h 3,Professional casting process 4,1year without quality issue 5, ... Table Model Capacity HeadSpeedEfficicyNPSHExports DiameterMax Partical Size Q(m3/h)H(m)n(r/min)Imports Diameter η(%)NPSHr(m)(mm)(mm)200ZND600-800 ...