18.下列何種銲接,其母材並未熔化?
(A)錫銲
(B)電銲
(C)氬銲
(D)氧乙炔氣銲
答案:登入後查看
統計: A(1004), B(97), C(84), D(172), E(0) #2160797
統計: A(1004), B(97), C(84), D(172), E(0) #2160797