A.-0.95 B.+0.95 C.+0.05 D.-0.05
A.1.5倍工作压力耐压试验 B.1.25倍工作压力严密性试验 C.渗油或水试验 D.工作压力严密性试验
A.±0.2 B.±0.5 C.±1,0 D.±1.5
A.65% B.70% C.75% D.80%