A.1.3~2.5mm B.1.5~2.5mm C.1.8~2.5mm D.2~2.5mm
A.1/5 B.1/4 C.1/3 D.1/2
A.0.6~1.0mm B.0.7~1.1mm C.0.8~1.2mm D.0.9~1.3mm