... chromed plated Various parts for hyundai R210 arm, boom, bucket cylinder assy: Part name: R210 arm boom bucket cylinder assyMaterial: 45# steel,40CrApplied excavator: hyundai R210 Working pressure ... orderBackground:We supply all kinds of hydraulic cylinders for excavator including Boom cylinder, Arm cylinder and Bucket cylinder, which are applicable for Catepillar, Komatsu. Hitachi, Doosan, Volvo, ...