supply of manufacture and supply of metal liner use with psc wider sleeper suitable for 60 kg rail as per rdso drg. no. t-8748 with alteration no. 1 or latest and conforming to irs: specification no. t-56-2025 (first revision april 2025) or latest corrigendum issued before 15 days from the tender opening date.manufacture and supply of metal liner use with psc wider sleeper suitable for 60 kg rail as per rdso drg. no. t-8748 with alteration no. 1 or latest and conforming to irs: specification no. t-56-2025 (first revision april 2025) or latest corrigendum issued before 15 days from the tender opening date.,manufacture and supply of metal liner use with psc wider sleeper suitable for 60 kg rail as pe r rdso drg. no. t-8748 with alteration no. 1 or latest and conforming to irs: specification no. t-56-2025 (fi rst revision april 2025) or latest corrigendum issued before 15 days from the tender opening date. [ wa rranty period: 30 months after the date of delivery ] ] , manufacture and supply of metal liner use with psc wider sleeper suitable for 60 kg rail as pe r rdso drg. no. t-8748 with alteration no. 1 or latest and conforming to irs: specification no. t-56-2025 (fi rst revision april 2025) or latest corrigendum issued before 15 days from the tender opening date. [ wa rranty period: 30 months after the date of delivery ] ] , manufacture and supply of metal liner use with psc wider sleeper suitable for 60 kg rail as pe r rdso drg. no. t-8748 with alteration no. 1 or latest and conforming to irs: specification no. t-56-2025 (fi rst revision april 2025) or latest corrigendum issued before 15 days from the tender opening date. [ wa rranty period: 30 months after the date of delivery ] ]