... 40cr,35CrMO4 Modle: Katerpillar, Komatsu, Hitachi, Daewoo, Hyundai, Kobelco and other reputed brands. We can also make products according to ... your drawings, specifications and samples. 5 Production Line And Quality Guarantee: Making use of the cold forge and hot forge technology 6 ... )If you are interested in these products,please don't hesitate to contact me.Sincerely look forward to cooperation ...