wind tower line welding manipulator different designs,auto welding reasonable price good quality wind tower linewelding manipulator Welding manipulator is mainly composed of trolley, column, boom, the ... ,column and boom will be distressing processing after welding and then will be finish machining.l The ... handTrolley Gauge(mm)20001800100020001800800Beam Bearing(kg)2501008025010020 wind tower line