It is reckoned conclusivly that a heating rolled narrow strip of steel which is made by endlessness hard and cold material containing element Ni, Cr and Mo, will be widely used.

• 诊断结果认为高镍铬钼无限冷硬铸铁材质在热轧窄带钢用精轧工作辊还有发展、完善的空间。