Tenders for Supply of Tap Changer Switch Group Fibre Glass Front Cover Small With Fire Retardant Properties For Bhel Em Us To Kpa Drg. Nos. 1 Er/Kpa/El/Gr.1He.243E Items- 1, 3 To 7 And 9 To 15. 2 Er/Kpa/El/Si.3He.588C. Warranty Period: 30 Months After The Date Of Delivery