1) Competitive price 2) 10 years experience 3) Technique support 4) High Quality Control ... jack, hydraulic ram1) suitable for the excavator, boom, arm and bucket cylinder2) Steady performance and high durability3)12months quality guarantee4)more ... hydraulic cylinders for excavator including Boom cylinder, Arm cylinder and Bucket cylinder, which are applicable for Catepillar, Komatsu. Hitachi, Doosan, ...