... HITAVHI , Komastu, KOBLECO , HYUNDAI , DAEWOO , Volvo and Cat .1. Product Information Materialcarbon steel/Alloy steel/ as requestedHardness45-- ... Advantages / FeaturesOur company has already passed ISO9001-2000 international quality control system. and adopts advanced examintion, manufacturing equipments ... product list MachineModel Number Weight(KG) CAT 307 1U3202 2.25 CAT 315 1U3252 2.8 6Y3254 4. ...