A.0.01~0.02 B.0.02~0.03 C.0.034~0.04 D.0.04~0.05
A.500 B.1000 C.1500 D.2000
A.0.005~0.01mm B.0.01~0.015mm C.0.015~0.02mm D.0.02~0.04mm