Balance Arm 1. Main material of cantilever: high-strength integrated molding aluminum alloy. 2. 360° wide range rotation will make the operation field more wide and raise the efficiency of staff. 3. The stability of the cantilever make sure it won't drift, convenient for adjustment and application of operation environment. 4. The load of single cantilever <80KG with no gaps. 5. No distortion in full load. Load and function of each cantilever will adds in turn Spring Arm 1.360 ° wide range rotation will make the operation field more wide and raise the efficiency of staff. 2. The stability of the spring arm make sure it won't drift, convenient for adjustment and application 3. Flexible and light operation 5 types of spring arms