STIFF LEG DERRICKS
Stiff Leg Derricks are required whem mobile cranes cannot do the job. They are erected on the roof tops of buildings to hoist materials and are usually used for long term projects. Stiff Leg derricks are used at extremely high heights or in situations where poor space availability is an obstacle. Siff leg Derricks can be used for the erection or dismantling of tower cranes.
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