ST型缓冲器组装后须进行不大于（)的压吨试验，压缩后须能自由恢复原位。A.100tB.120tC.150tD.18

ST型缓冲器组装后须进行不大于()的压吨试验，压缩后须能自由恢复原位。

A.100t

B.120t

C.150t

D.180t