... excavator, boom, arm an Various parts for hyundai R225/260/305 arm, boom, bucket cylinder assy: Part name ... boom bucket cylinder assyMaterial: 45# steel,40CrApplied excavator: hyundai R225/260/305 Working pressure: 32MpaBrand: HTYCategory Group: hydraulic partsCategory: ... the cylinders,rod pistons,cylinders,headcylinders,plungers,nuts,etc. R225/260/305 hyundai arm, boom, bucket cylinder assy;excavator ...