钢球研磨机 meaning in English

steel ball la ing machine
steel ball lapping machine

Steel ball lapping machine
钢球研磨机
Precision copper sphere grinders , super - precision copper sphere wrapping machines , copper sphere polishing machines , automatic ball inspectors , laser measurement devices , surface roughness machines , perfect circle measurement machines , digital scopes , etc
精密钢球研磨机，超精密钢球lapping machine ，钢球polishing machine ，自动球检查器，激光测定机，表面打磨机，正圆度测定机，电子观测器等