A.3种 B.4种 C.5种 D.6种
A.0.013mm B.0.015mm C.0.018mm D.0.020mm
A.≤0.1 B.≤0.2 C.≤0.3 D.≤0.5
A.0.050～0.102mm B.0.051～0.101mm C.0.052～0.102mm D.0.053～0.101mm
A.1MM B.2MM C.3MM D.0.5MM
