• Closing speed can be adjusted 5-17seconds
• Available suite 8-12mm glass thickness
• Hold open range at 80-180°,auto close around 70°±5
• Model available suite maximum 80kg door
• For single action door
• Durable dampers  can prevent long time pushing or wind impact
• Perfect combination. Upper hinge - air pressure auto-closing. Lower hinge - oil pressure damper
• Wide-ranging application. Can be installed on wood, aluminum, or many kinds of steel materials
• Aluminum alloy wire drawing finishing
• 3 years warranty