Material :High quality alloy
1) 38 CrMoAIA(JIS SACM645)
2) 42 CrMo(JIS SCM440)
3) 9 Cr18MoV
4) CW6Mo5Cr4V2
5) SKD61
Heat treatment
Spraying bimetallic alloy for corrosion resistance & abrasive resistance
Nitride treatment
Hard chrome plating
High frequency quenching
Vacuum quenching