... 4.working hrs:200-250 hrs Tractor rotavator blade sonalika in Indiacompany nature:tiller blade manufacturercompany history:since 1989Supplying high quality ... , Italy, Japan, Europe, USA, India, Middle East, Australia, etc.1)Material: spring steel, 65Mn, 60Si2Mn (Sup6), 28SiMnB2)Process: forged3)Heat treatment: normalized ... can product as per your requirements. Tractor rotavator blade sonalika in India