... , QTZ80, QTZ100, QTZ125, QTZ160 and QTZ260, to meet the demands of various customers in different construction fields. We've been exporting ... .3 28.3/17.226/18 22/15Upper chord of lifting BeamΦ76x6 Φ76x4.5Standard section dimension(mm 1494x1494x2200Matching ... 140x10 ∠125x10∠100x10 Q235BParallel height of lifting beam (mm)1040 the loading and unloading in the workshop of factoryQTZ 25 Series tower crane