A.≤1mm B.≤2mm C.≤1.5mm D.≤0.5mm
A.5±0.5mm B.5.5±0.5mm C.5±0.05mm D.5.5±0.05mm
A.0~2.5mm B.0.5~2.5mm C.0~1.5mm D.0.5~1.5mm