... as HITAVHI , Komastu, KOBLECO , HYUNDAI , DAEWOO , Volvo and Cat . 1. Product Information Materialcarbon steel/Alloy steel/ as requestedHardness45--54HRCAKV>25J (normal ... make the products with the impact and hardness.3.workshop4.product list MachineModel Number Weight(KG)DH130 713-00057 3.7DH150 2713Y1212 ...