... 's wish,thickness from 3-12mm,HRC 38-44 Our disc blade are made of 60Si2mn,finishing:paintedHRC 42-50,The ... . Our farm equipments include Farm & Garden Tractor,trailer, Rotavator, Disc Plough, Grain Augers, Disc Harrow, Blade, Harrow Cart, Mower, Rear Blade, Root Bake ... and so on. Also supply many different spare parts,like disc blade,tiller,chooper blade,cutter base,S-tine,spider wheels ...