... friction Increased using life mould parts with high quality core holder 1.core holder material:s45c+brass2.has angle of ... elements: Straight side interlocks, X-style Straight slide interlocks, Square interlock,Tapered interlocks, Taper pin sets . Ejector devices: Two ... -stage ejector, Accelerated knock-outs,slide core units, Lifter . Ejector Series: Ejector pin, Ejector blades ...