A.1.0Mpa B.1.2Mpa C.1.6Mpa D.1.7Mpa
A.0.80 B.0.85 C.0.90 D.0.95
A.0.1-0.2Mpa B.0.3-0.4Mpa C.0.5-0.6Mpa D.0.7-0.8Mpa