... 2000. 4.PLC Specifications:A),Polishing machine is used for polishing and buffing the stainless steel seal head, ... and high efficient ,mirror polished .2.Frequency speed control ,high quality .3.Roughness as 0.1 um4.Speed : 8m2/ h5.Automatic polishing machine .Machine ... dish/dished head polishing machne,elliptical/spherical head polishing machine,tank head polishing machine for metal/aluminum