A.0.02~0.03MPa B.0.05~0.07MPa C.0.08~0.01MPa D.0.12~0.14MPa
A.15m B.20m C.25m D.30m
A.0.4~0.5 B.0.5~0.6 C.0.6~0.7 D.0.8~1.0