Unique Automatic Door Closer Aluminum

APPLICATION SCOPE: Door Closer Commercial applies to door weight between 65-85kg(143lb-187lb), door width 80-120cm(31"-47.2"), Door open range: 180andordm; maximum. Not suited for the light door. SPECIALITY: Antioxidative, anticorrosive, rustless, steady, abrasion-resistant, weatherproof, hydraulic, quiet, and safe closer, with adjustable speed screws, Tested by 500,000 cycles, oil leaking probability under 1/1000. WHAT YOU GET: Installation Handbook Included Domestic Door Closer easy to install, detailed English installation instruction with pictures/handy diagram provided makes you understand and instal