I have seen in some colour picture that the steel is rolled being red and it looks quite hot . why 我在一些照片上看到正被轧制的钢都是红的，而且它看上去挺热，这是怎么回事？
I have seen in some colour pictures that the steel being rolled is red and it looks quite hot . why 我在一些照片上看到正被轧制的钢都是红的，而且它看上去挺热，这是怎么回事
Standard specification for copper - zinc - tin and copper - zinc - tin - iron - nickel alloys plate , sheet , strip , and rolled bar 铜锌锡和铜锌锡铁镍合金板薄板带材及轧制的棒材标准规范
Standard specification for general requirements for wrought copper and copper - alloy plate , sheet , strip , and rolled bar 锻造铜及铜合金板薄板带材及轧制的棒材一般要求的标准规范
Standard specification for copper - zinc - aluminum - cobalt alloy , copper - zinc - tin - iron alloy plate , sheet , strip , and rolled bar 铜锌铝钴合金铜锌锡铁板薄板带材及轧制的棒材标准规范
Hot - rolled products of structural steels - technical delivery conditons for the thermomechanical rolled weldable fine grain steels 结构钢热轧制品.热机轧制的可焊接细粒钢的交货技术条件
The characteristic of profiled bat - concrete structure is to set profiled bar in concrete . the profiled bar could be rolled or welded 型钢混凝土结构是在混凝土中配置型钢，这些型钢可以是轧制的也可以是焊接的。
Hot rolled products of structural steels - part 4 : technical delivery conditions for thermomechanical rolled weldable fine grain structural steels 结构钢热轧产品.第4部分:热机械轧制的可焊接细晶粒结构钢交货技术条件
Hot - rolled products of structural steels - part 3 : technical delivery conditions for normalized normalized rolled weldable fine grain structural steels 结构钢热轧产品.第3部分:正火正火轧制的可焊接细晶粒结构钢交货技术条件
In this paper , the circuit configuration is ascertained on the basis of analyzing other circuit configuration of welding machine power supply , which links with the characteristics of endless - rolling 本课题在分析了各种次级整流焊机电源电路结构的基础上，并结合无头轧制的特点，确定了适合无头轧制焊机电源的电路结构。
