DYMAX    DYKNG  HLMAX DYCM7  DHMAX  PMRAX  UINPM  DYX3  DYCM5  

DH53 hardness 52-58, heat resistance, high toughness and wear resistance, replacing DC53

DYMAX hardness 54-56 thin core

HLMAX hardness 55-58, high toughness, wear resistance and corrosion resistance

UINPM hardness 59-61 ordinary ejector pin replaces SKH9

DYCM5 hardness 56-58 toughness and wear resistance

DYCM7 hardness 58-60 toughness and wear resistance

PMRAX hardness 58-60 toughness and strength fine ejector pin and needle seat

DHMAX hardness 54-58 universal temperature-resistant core