11.TIG 銲接時,以氬氣為遮護氣體,下列何者為其電極之材料?
(A)低碳鋼
(B)銅
(C)鎢
(D)鋁
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統計: A(4), B(3), C(19), D(0), E(0) #968177
統計: A(4), B(3), C(19), D(0), E(0) #968177