... -bearing hinge) General ≤45kg 2 multi-functional hinges Heavy ≤85kg 3 multi-functional hinges over heavy ≤100kg 4 multi-functional hinges3.Speeds in different intervalStatic interva (80°-180 ... , reliable and stable performance ensured,2, nice looking shape, no need of connection.1), no connecting parts,. petite structure, elegant shape2),Application ...