24. Selection of a relief valve is important. Which caution is not necessary to be considered?
(A) Correct size
(B) Have a good conductor of electricity
(C) Loading
(D) Limit of its set pressure
答案:登入後查看
統計: A(97), B(592), C(142), D(112), E(0) #1585214
統計: A(97), B(592), C(142), D(112), E(0) #1585214