A.≥0.9Mpa B.≥0.75Mpa C.≥0.60Mpa D.≥0.45Mpa
A.≥10.0Mpa B.≥8.0Mpa C.≥12.0Mpa D.≥6.0Mpa
A.12套 B.10套 C.8套 D.5套