Our main products include high precision mould components such as ejector pins,Slide retainters, Latch lock, Date Stamps,etc. Mold components Ejector sleeves 1,Material JIS SKD612,Hardness 3,I.H Inner Hardness :HRC42±2° 4,S.H Surface Hardness :HV1000°5,Concentricity ≤ 0.03