Tower  Crane QTZ  25 (3506)   Feature: ① Max. Lifting load : 2.5 T ② Max. Working capacity : 35 M ③ Independent height : 25 M  ④ max. Height : 60 M   ⑤ lifting capacity at jib tip : 0.6 T ⑥ slewing speed : 0.72  r/min  ⑦   standard section size :   1.49x1.49x2.2  M