Antagonistic pairs of muscles are muscle where one move the bone in one direction and the other moves it back the other way in transmission of nerve impulses to the muscles.
Demag, which manufactures and distributes telescopic and lattice boom cranes, is one of the leading mobile crane producers worldwide, with 2001 revenues of approximately $360 million.
At the Liebherr factory site in Ehingen, Germany, the company has built a lattice boom crane that towers 150 m above the ground in a form that has never been seen before.