First grade ,Alloy steel ,12.9 Bolt/nut for for Construction machine: Komatsu, Caterpillar , Hitachi , Simitomor ,Dawoo , 1.Product imformation:1)raw material:40CR,35CRMO 2)Grade:10.9,12.9 3)Finish color: grey, black 4)Machine: Heating forging machine2.Design / Structure / Details Pics 3.Advantages / Features:Plow bolt testing results:NAME OF SAMPLEPLOW BOLTDESCRIPTIONDIAMETER >16MARKS RAW ...