This Part specifies the dimensional specifications and tolerances for headed guide bushes for plastic injection moulds. This section applies to headed guide bushes for plastic injection molds. This part also gives material guidelines and hardness requirements, and specifies markings for headed guide bushes.
GB/T 4169.3-2006 Referenced Document
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 4170-2006 Specification of components of injection moulds for plastics
GB/T 4169.3-2006 history
2006GB/T 4169.3-2006 Components of injection moulds for plastics.Part 3:Headed guide bush
1984GB/T 4169.3-1984 Components of injection mould for plastics--Guide bushes with head