... Door Closer 1. Manual open, automatic close, 2. No motor, no drive device, energy saving 3. For double leaf Haudraulic Door CloserDoor type ... 1 leaf, single 2 leaf, bi-partingRecommended max. door weight 60×1 kg ... door and separated door of home, Hospital, Hotels,offices etc. No special maintenance are required.2 leaf, bi-parting Haudraulic Door Closer