Rail Trolley Our product is named conductor bars , and you can call it power supply systems. It is widely used like as workshop cranes,iron and steel industry,railways,leisure industry,mines,conveyor system,roller coaster ,multipole feed system, bridge construction crane,water treatment works. Advantages of conductor bars :Ability to feed several moving machines from the same conductor systemssuitable for high amperagefeed points can be placed at any locationcompactness long ayatems length possiblesuitable for both indoor and outdoor useInsulating covers shaped to shed water and dust If you need ,please contact me and i will send you the Technical dataour products to visitwelcome to visit our factory!Please contact me:SianTEL:86-027-86819736FAX:86-027-50862381Trademanaager:whmarch