LIST

• Head and Tail Rack Shifter
• Half circle type positioner
• Heavy Duty Circle Positioner
• M-type head and tail type lifting and turning positioner
• Large tonnage lifting and turning positioner
• Chain type turning positioner
• H-beam submerged arc welding machine
• Four-shot welding machine for boom
• Middle groove hollowing welding machine
• Specialized welding machine for tower crane upper and lower support box ring plate.