Supply Of Pantograph Type Am-12 Complete With Throttle Valve, Main Spring And Other Accessories Without Servomotor And Foot Insulator, M/s. Sil Ordering Ref. 22110001 For A.c. Loco.with Metalised Carbon Strip As Per Rdso Technical Circular No. Elrs/tc/ 0071-2001 Rev.0 In Place Of Silicon Manganese Steel Strip.each Unit Should Be Emboss/engraved With Makers Name, Month, Year And Batch No. Of Manufactuing At A Conspicuous Place..