Steel is an alloy of iron and carbon. Coking coal is a source of carbon in the smelting process.
钢是铁与碳的合金,焦煤便是熔炼过程中碳的来源。
2
The physical core is crystallized in magnetic iron-nickel alloy-composite. The core is not hollow.
物质核心是磁性铁镍合金复合材料的结晶,其核心不是中空的。
3
In regard to non wear resistance of the white iron shot in the practical application process, alloyiron shot have been produced by means of adding alloying element and proper heat treatment.