FDAC氮化处理内部硬度:34-36HRC 表面硬度:HV900以上；真空处理:50-54HRC(整体)；此类产品内孔由深孔钻加工而成,可保证较高的配合精度及互换性。硬度高,韧性好；使用时不易变形,可显著提高模具使用寿命,效果极佳.

　　FDAC nitrogen handle internal hardness :34-36HRC Surface Hardness: HV900 above; vacuum :50-54HRC (overall); such products, the hole formed by the deep-hole drilling process can ensure high accuracy and interchangeability with the . High hardness, toughness, good; use is not easy deformation, can significantly increase the die service life, excellent results.