Supply of Pin For Bolster Spring Suspension To Drg. No.- T-0-5-637, Alt.-12/P, Is:5517-93 Gr 45C8, C. Rlya. Hardening, Tempering & Magnaflux Testing To Be Done As Note 1 & 2 Of Drg. No. T-0-5-637, Alt.- 12/P. Warranty Period: 30 Months After The Date Of Delivery