DISC PlOUGH BLADE

Harrow Disc,plough blade, disc blade,plough disc,harrow disc ，Material: 65 Manganese Steel ，Heating: 900 span，Quenching: 1+2 about 300 span
     Hardness: 38 to 45 HRC ，Holes Availability :1. Square 2. Round  3.  Round with key slot 
     4. Round and square combined Types of disc  5 . Plain    6.Notched