關於「EN41B Hardness」標籤，搜尋引擎有相關的訊息討論：

EN41B | 41CrAlMo7 |1.8509|SACM645 - Fuhong Steelwww.round-bars.com › PortfolioWhat You Don't Know About Nitriding Steels, Specially EN 41Bwww.kiscosteel.com › ...EN41B Nitriding Steel|41CrAlMo7-DIN 1.8509www.fuhongforge.com › en41b-905m39-alloy-steel(PDF) Comparative Analysis o