Tenders for Supply of Carbon Brushes For 3-Phase Traction Motor Type 48-45-6 Medha Make Ercucli7nn07 R01. 25X40x55-Be14z 1/85452000. Make:Assam Carbon, Mersen India And Medha Only. Warranty Period: 30 Months After The Date Of Delivery Carbon Brushes For 3-Phase Traction Motor Type 48-45-6 Medha Make Ercucli7nn07 R01. 25X40x55-Be14z 1/85452000. Make:Assam Carbon, Mersen India And Medha Only. Warranty Period: 30 Months After The Date Of Delivery