HR60 Airtac hydraulic speed stabilizer 1. The outer tube, inner wall and axis are mirror-finished to ensure good leakage prevention. 2. The operating oil used inside the tube maintains a stable viscosity within the operating temperature;3. Therefore, the oil discharge from the inner tube is stable and even, and the speed stability is excellent. The front end of the axis is hardened by a special heat treatment tube;Category: Hydraulic Buffer, Brand: Airtac, Series: HR