Haudraulic Door Closer 1. Manual open, automatic close, 2. No motor, no drive device, energy saving 3. For double leaf Haudraulic Door ... °C to 50°C1. FeaturesHumane design and energy saving. No motor, no drive device, users can open thedoor with hand and the ... door and separated door of home, Hospital, Hotels,offices etc. No special maintenance are required.2 leaf, bi-parting Haudraulic Door ...