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.
Double Girder Overhead Crane. Double Girder Overhead Crane is double girder bridge crane with hook, suitable for indoor or outdoor fixed cross intercropping handling and transport work. Lifting capacity range 5T-1000T, working-level generally divided into A3, A5, A6.