研磨高速鋼或碳鋼，應選用何種磨料之砂輪(A)碳化鈦(B)氧化鋁(C)氧化鈦(D)碳化矽。

問題詳情

1. 研磨高速鋼或碳鋼，應選用何種磨料之砂輪
(A)碳化鈦
(B)氧化鋁
(C)氧化鈦
(D)碳化矽。

參考答案

無參考答案

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