... knife 1)High quality,low price 2)Material 65 Mn 3)Usage kogoba,yanmar,John deer,foton,class,etc diffusion knife1)High quality,low ... 65Mn(1566),Process:Forging,and the diffusion knife is suitable for cutwe can also supply the diffusion knife,such as:plough ... visit and any sample or drawing is welcome . good quality low price diffusion knife