fine grind

• Mirror surfacing is a difficult task that requires considerable skill when performed using a conventional shot system polisher . however , in the shot machine smap , kamei iron works has incorporated an originally developed grinding medium that consists of a compound coating of fine grinding particles on the surface of an elastic material core
  以前的发射式研磨机的镜面加工过程有很大的难度，现在的发射方研磨机smap ，是把弹性素材做为核心，在核心表面用研磨粉末制作复合表面涂层的新形研磨法。