This standard specifies the dimensions and tolerances of return levers for die-casting dies. This section applies to reset levers used in die-casting molds. This part also gives material guidelines and hardness requirements, and specifies the marking of reset levers.
GB/T 4678.12-2003 history
2018GB/T 4678.12-2018 Die casting dies—Components—Part 12: Return pins
2003GB/T 4678.12-2003 Die-casting die components--Part 12: Return pin