1.core holder material:s45c+brass 2.has angle of 0 to20, ... 3.reduce friction Increased using life mould parts with high quality core holder 1.core holder material:s45c+brass2.has angle of 0°to20 ... sets . Ejector devices: Two-stage ejector, Accelerated knock-outs,slide core units, Lifter . Ejector Series: Ejector pin, Ejector blades ,Shouldered ejector ...