1. Continuously overall promotion makes our lifting capacity of crane be improved once and once again.2. 43 m main boom , two section jibs (9.5m ,16m).3. Optimized central slewing position increases the lifting capacity of the crane over rear. 4. Large outrigger span improves the working stability of the crane greatly,5. Adopt internationally advanced structure analysis and calculation methods to develop the lifting capacity of crane deeply.6. Leading boom manufacturing process in trade.