the usual quality problems of steel ball Lapping finish
The usual quality problems of steel ball lapping finish:
1.unqualified steel ball surfaceness.
2.local steel ball unqualified surfaceness.
3.Lapping finish in the
steel balls surface.
4. unqualified steel ball spherical distorence.
5.steel ball surface abrade.
6.group of points in the steel balls surface.
7.unqualified steel ball surface waveness.
