1,220-240V single phase 2,Marble,granite floor grinding 3,Wonder power saving motor 4,Factory concrete polish machine Planetary floor grinder , terrazzo floor grinder , htc floor grinder , planetary concrete grinder 1,220-240v Three phase2,Marble,granite floor grinding3,Wonder power saving motor 4,Factory,CE,SGS ModelQ6Operating speed300-1200rpmGrinding disc200mm*3Rotating Speed300- ...