... 1200mm-3000mm 2,Pressure: 30N-500N 500-1000N Traction Gas Spring Quality180,000 times -passed TUV fatigue testROHS certificated by SGSPassed ... such as aviation,Fitness Equipment, automobiles, motorcycles, machinery,medical equipment, furniture, doors, trunk lids,cabinets,seat / chair etc OD(mm) RD ... -800 28 12/14 50-700 100-900 Traction Gas Spring