... CNC machining Weight:50kg-200kg CompanyDalian Wills Machine Co.,LtdProduct nameCoke oven equipment oil cylinderMaterialSteel,20#,45#,Aluminium, bronzeComposeHydraulic body, ... or other metal, this hydraulic rod extends through the top of the cylinder body. When the piston moves, the ... cylinders are used in almost all types of construction equipment like as excavators, bulldozers, back hoes, cranes and ...