单项选择题
A.0.01~0.02mm B.0.02~0.025mm C.0.025~0.04mm D.0.04~0.05mm
A.0.015mm B.0.01mm C.0.005mm D.0.030mm
A.0.01~0.02mm B.0.02~0.025mm C.0.025~0.04mm D.0.04~0.06mm