The structure of electric 5ton single girder overhead crane for sale is mainly divided into main beam, traveling mechanism and electric hoist.The electric 5ton single girder overhead crane for sale always used in heavy steel plants, rolling plants, mines, paper plants, Paper& pulp plants, cement plants, power plants, hydroelectric power, pipe mills, waste disposal, metallurgy, rail transite, automobiles, food/pharmaceutics industry. http://www.sevenindustry.com