... GL.LR,NK,etc., and abtained the authentication certificate of Quality System ISO9001:2000.Product FeatureHighest propulsive efficiency in all ... condition,Excellent behaviour regarding cavitation,with no erosive types of cavitationLowest pressure pulse fluctuations on the hull to minimize ... thrusters,Azimuth thrusters,Water jets,also Main propulsion assembly. Marine Lateral blade of propeller