A.0.2MPa B.0.3MPa C.0.4MKPa D.0.5MPa
A.0.1-0.3 B.0.2-0.4 C.0.4-0.6 D.2
A.0.1-0.2Mpa B.0.2-0.3Mpa C.0.4-0.5Mpa D.0.5-0.6Mpa