https://www.high-tech-grinding.com/02-global-xingyi-floor-grinder/concrete-floor-grinder-machine-for-sale.html
640-3V is used to handle various types of flooring. Used for grinding (rough grinding, fine grinding, polishing) concrete.
1.High sealing mechanism, the spring damping system and all-galvanized steel components can extend significantly the lifespan of machinery.