A.0.05mm B.0.1mm C.0.2mm D.0.3mm
A.0.05~0.10mm B.0.15~0.20mm C.0.20~0.30mm D.0.03~0.04mm
A.0.01~0.015 B.0.015~0.02 C.0.02~0.025 D.0.025~0.03