Steel grain-reinforced pure copper cast composite was gotten successfully by suspension casting process and controlling the cooling rate.
采用悬浮浇铸工艺并控制冷却速度成功地得到了钢颗粒增强纯铜基铸造复合材料。
The cast steel parts have been successfully employed in steel structure roofing with large span and area.
该类铸件已成功地应用于大跨度、大面积钢结构屋面。
The new material for medium speed grinding roll-MnMo compound high chromium cast iron has been developed successfully.
成功研制了中速磨磨辊新材料——锰钼复合高铬铸铁。
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