... •bore: no rust,smooth,neat •wiper seal 1.used for steering for binding machine 2.seal:assemble ring,Y-ring,O-ring,wiper ring ... Rod cylinders,welded cylinders and OEM cylinders.they are used for construction,mining, forestry, marine, demolition, military, material handling, agriculture, truck ... products have long life, superior performance and highreliability. hydraulic cylinder for binding machine