This Part specifies the dimensional specifications and tolerances for shouldered push rods for plastic injection molding. This section applies to shouldered push rods for plastic injection molds. This part also gives material guidelines and hardness requirements, and specifies the markings for shouldered pushrods.
GB/T 4169.16-2006 Referenced Document
GB/T 4170-2006 Specification of components of injection moulds for plastics
GB/T 4169.16-2006 history
2006GB/T 4169.16-2006 Components of injection moulds for plastics.Part 16:Shouldered ejector pin