High temperature steel body trolley line is made of copper or aluminum conductors and steel skeleton structure constituted by steel body structure is divided into modular trolley line and composite steel body trolley line. Second, product characteristics: 1, safe and reliable: good contact performance, no arcing, power outages and other failures do not occur, reliable operation. 2, a wide range of applications: adaptability, can be used in high temperature, high humidity, high voltage, highly corrosive, dusty and other harsh environments; after additional auxiliary cables, wires can exponentially reduce the impedance can be composed of low resistance against sliding touch line, to expand the scope. 3, superior performance: high mechanical strength, stiffness, and not bent variant, can withstand a greater current impact; small resistivity, can significantly reduce energy consumption. 4, simple structure, flexible installation, maintenance facilities; 5, heat dissipation area, low temperature, long service life.