1,adopt KDS,it is heat faster and have long life 2,can used in floor and stair polishing 3,polishing machine 4.grind,polish floor and stair polisher,granite polishing machine,epoxy floor grinding and polishing machinemarble floor polishing machine 175AEXY-175AE was designed for grinding and caring marble,widely used in grinding and polishingstone floor in hotel,building and villa etc.This machine ...