問題詳情

14. Which of the following casting processes are expendable-mold operations:
(A) centrifugal casting,
(B)die casting,
(C) investment casting,
(D) low pressure casting,
(E) vacuum molding?

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增