A.–0.010m B.–0.007m C.+0.005m D.+0.007m
A.1/6030 B.1/6029 C.1/6028 D.1/6027
A.29.8540m;-0.4mm B.29.8540m;+0.4mm C.29.8536m;-0.4mm D.29.8536m;+0.4mm