A.1.2 B.1.4 C.1.6 D.1.8
A.10min B.5min C.15min D.20min
A.8% B.10% C.12% D.15%
A.30mm B.40mm C.50mm D.60mm
A.6mm~18mmB.8mm~18mmC.8mm~20mmD.6mm~20mm