... part low price high quality standard mold parts square interlockmaterial :YK30square interlock Hardness HRC56+-2code KY-50 ... elements: Straight side interlocks, X-style Straight slide interlocks, Square interlock,Tapered interlocks, Taper pin sets . Ejector devices: Two ... ejector pins,Ejectorsleeves, Leader pin/Guide pin, Guide bush, Angle pin,Shoulder guide bushing, Sprung Cores ,Air poppet valves ...