This Part specifies the dimensional specifications and tolerances of headed guide bushes for die-casting dies. This section applies to headed guide bushes used in die-casting dies. This part also gives material guidelines and hardness requirements, and specifies markings for headed guide bushes.
GB/T 4678.6-2003 history
2017GB/T 4678.6-2017 Diecasting dies—Components—Part 6: Headed guide bush
2003GB/T 4678.6-2003 Die-casting die components--Part 6: Headed guide bush