... form 2.5t to 16t, which include QTG25, QTZ25, QTZ31.5, QTZ40, QTZ63, QTZ80, QTZ100, QTZ125, QTZ160 and QTZ260, to meet the demands ... ∠140x10 ∠125x10∠100x10 Q235BParallel height of lifting beam (mm)1040 the loading and unloading in the workshop of factoryQTZ 25 Series tower crane