... , 45#2) Heat treatment :hardening and tempering,high frequency quenching,carburizing quenching and so on3) Groove surface quench: HRC45-554) Groove ...
... : cutting, cnc, grinding, anodizing3) Finish: anodizing, zinc plated, nickel plzted, carburizing, heat treatment, polish and so on4) Various size can be ...
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