... bar, more safe and convenient.● Upgraded parts, Graphite-copper bushes and slider used on tie-bar, ejector and movable ... long time working, the bars will deformation, and the bushes easy to wear, under high pressure injection, the injection ... movable platen slider●●●Self-lubricating copper tie-bar bushes●●●Self-lubricating ejector plate bushes●●●Mechanical & electric interlock device●●●Mold open & ...