... tool 2.It can replace the ginding machine 3.Very easy operate Surface concrete grinding machine GuoYun founded in 1990,it is ... be used in parallel lathe,vertical lathe,grinding machine,boring lathe,facing machine,spherical lathe Improve the metal surface roughness,the ... ShanKePing tools in radial direction of 20000 to 30000 times per second high frequency energy impacting to the workpiece. Mainly ...