mould components accroding din, jis, hasco, dme standard. -Material: Skd61, HSS, 1.3343, suj2, C45, -Hardness: Head Hrc45-50, body Hrc 58-60 Heattreatment and oil quenching, temperted make the ejector pin have heavy hardness and high ductility, then prolong the working life. -Use for enjection mould, plastic mould and industry producing.