首页 / 百科 / 内容详情 Metal processing techniques are normally preceded by refining, alloying and often heat-treating process. 2022-04-30 4次阅读 heattreating processing techniques Metal processing techniques are normally preceded by refining, alloying and often heat-treating process. A.正确B.错误正确答案：错误 （）metals, by definition, have melting points are above 2000℃, some of them reaching as high as 3426℃. Ferrous metal has a relatively low density and a comparatively high electrical conductivity. 猜你喜欢