规格Typemm工作面平面度相对面平行度Flatnesslfworkingsurface&parallelismofopplsitesufcace工作面间垂直度Squarenessbetweenworkingsufaces每对平行规H.W等长之差Tolerancelfh.wbetweenamatchedpair精密等级Precisiongrade( m)OO级O级OO级O级OO级O级160*25*161.5320401.53250*40*2524306024400*63*4048408048630*100*6361250100612