1. suitable for marble,granite,concrete frnding 2.produce 50sets in one month 3.CE and SGS 4.floor polisher 1. suitable for marble,granite,concrete frnding2.produce 50sets in one month 3.CE and SGS4.floor polisherfloor polisherUse range: stone wet & dry grinding; level the notch; polishing; crystallization; cleaning; waxing, etc.Features2. Concrete marble/granite/floor polishing machine XY-X63. ...