Place of Origin:China (Mainland)
Model Number:komatsu,hitachi,kobelco,hyundai,kato,etc
Material:25MnB/45MnB
Technology:Forging
HRC:55-59
HRC depth:8-13mm
Guarantee:1500-2000 hours
Heat treatment:Tempering and medium frequency
Using:bulldozer
B.rgds
E:leelnly A sina.com