Tower crane QTZ66 adopt 345B manganese steel; standard mas(LXWXH):1.65x1.65x2.5M; free height:35m; CE approved Specification of QTZ66 5T ... Tower Crane QTZ66 Series Technical ParameterTower Crane ModelQTZ66(T5010)Rated Hoisting Moment ... for Lower Boom∠63X5∠70X6∠80X8∠90X8Deduction 5T tower crane QTZ66
