Material: Alloy-steel of High -Quality

1)38CrMoAlA (JIS SACM645)

2)42CrMo(AISI 4140)

3)Cr12MoV(JIS SKD-11)

4)4Cr5mOSiVI(JIS sKD-61)

50CCrWMoV(JIS HPT-2)

6)9Gr18MoV

Heat-treatment

Nitrding treament

Electroplated hard-chrome finish

high-frequency quenching

Spray coating Bimetallic-alloy