Nitrided Ejector Pin 1,consistent quality control 2,made-to-order service available ... ,Material:HSS M-2, SKH-9, SKD11 TEM Nitrided Ejector Pin Specifications and Variables Highly polished finish 6-8 micro finish ... ,D 14*25. 4,The surface coating type ,for example:Tin,Ticn 5,It is the best to provide your own ...