7.開口銷的英文名稱為
(A)EYEBOLT
(B)LOCKPIN
(C)SAFETYPIN
(D)COTTERPIN
答案:登入後查看
統計: A(0), B(0), C(0), D(35), E(0) #3193917
統計: A(0), B(0), C(0), D(35), E(0) #3193917