This Part specifies the dimensional specifications and tolerances for push plate washers for die-casting dies. This section applies to push plate gaskets used in die-casting dies. This part also gives material guidelines and hardness requirements, and specifies the marking of push plate gaskets.
GB/T 4678.13-2003 history
2018GB/T 4678.13-2018 Die casting dies—Components—Part 13: Ejector plate washers
2003GB/T 4678.13-2003 Die-casting die components--Part 13: Ejector plate washer