... pump turn at half speed which will result in longer life of the pump bearings and seals . Compared ... ,Italy, Nertherland, USA ,Brazil , Australia , Indonsia , India , etc . International Trade show of 2012 USA ——NATIONAL HARDWARE SHOW with LAWN & GARDEN ... MAY , 2012)Netherlands——ISSA INTERCLEAN -Central and Eastern Europe -International Trade Fair for Cleaning and Maintenance (MAY ,2012)I TALY—— ...