单项选择题
A.冷铆 B.热铆 C.拉铆 D.铆焊
A.880~1050N.m B.912~980N.m C.941~1020N.m D.941~1046N.m
A.4块 B.1块 C.3块 D.2块
A.60mm B.50mm C.30mm D.40mm
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