A.56~60mm2.6~3.1mm B.57~61mm2.7~3.1mm C.58~62mm2.8~3.2mm D.57.2~60.8mm2.75~3.15mm
A.1%~5% B.2%~10% C.4%~10% D.5%~10%
A.15° B.30° C.60° D.90°