... , Piston Rod, Cylinder Head, Shaft Nut, Cushion Collar, Collar, Bushing Main paramenter of oil tank: 1, Oil tank rated pressure P;2 ... , Locating distance L5, Travel S6, Installation of oil tank7, Connection of oil inletSpecification: diameter of cylinder 30-60mm wall thickness 3-50mmMaterials ... Kobelco Excavator Hydraulic Cylinder, Piston Rod, Cylinder Head, Shaft Nut, Cushion Collar, Collar, Bushing