Replacement parts for construction machine EXCAVATOR hydraulic cylinder model as follow: Boom cylinder,Arm cylinder,Bucket cylinder,Recoil spring cylinderKOMATSU PC60-5-6-7, PC120-3-5.,PC200-1-2-3-5-6-7,PC220-1-2-3-5-6-7, PC300-3-5-6,PC400-3-5-6HITACHI EX200-1-2-5,EX220-1-2-5,EX300-3-5,EX330,EX350,EX400-5KATO HD700-1-2-5-7,HD770-1-2,HD800-5-7,HD880-1-2,HD900-5-7,CATERPILLAR E120,E200E,E300,E300B, ...