Editorial Note: This article is written with editorial review and topic relevance in mind.
45号钢,是gb中的叫法,jis中称为:s45c,astm中称为1045,080m46,din称为:c45 45号钢为 优质碳素结构用钢 ,硬度不高易切削加工,模具中常用来做模板,梢子,导柱等,但须热处理 。 45＃钢.
Chicago Weather News Accuweather Forecasts
45 Day Weather Forecast Chicago Severe Timeline Latest Timing Updates With Storms
by
