Steel model name: NAK80
Material classification: plastic mould steel
Hardness (HTC) : 39-43
Life: more than 500,000 times
Use environment: dry, room temperature, avoid sun and rain.
Advantage: pre-hard steel, no longer quenching, but nitrification and hard, used for high gloss mirror, precision die, mold life can reach more than 500,000 times




