This Part specifies the dimensional specifications and tolerances for circular die buckles for plastic injection moulds. This standard applies to round die buttons for plastic injection moulds. This part also gives material guidelines and hardness requirements, and specifies the marking of round die fasteners.
GB/T 4169.22-2006 Referenced Document
GB/T 4170-2006 Specification of components of injection moulds for plastics
GB/T 4169.22-2006 history
2006GB/T 4169.22-2006 Components of injection moulds for plastics.Part 22:Round mould opening delayer