Tower crane 1,ISO9001-2000 2,safe operation 3,easy assemble 4,high quality and low price QTZ50(TC5008,TC5010) Tower Crane 1,tip load:1.0t 2,max load:4t 3,max lifting height:120m 4,working range:3-50m5,Rated lifting moment: 470,570KN.m6,Jacking speed: 0.4m/min7,More specifications pls inquiry today! QTZ50(TC5008,TC5010) Tower crane