supply of manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] dy.ce / c-i / kzj, scr telangana 210.00 numbers dy.ce / c-ii / gnt, scr andhra pradesh 450.00 numbers , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ] , manufacture and supply of wider pre-stressed concrete sleeper for 25t axle load for 60kg ( uic ) / 52kg running rails with 60kg ( uic ) / 52kg guard rail for use on ballasted desk bridges as per drg no.t-8970, with latest alteration if any and to irs specification t-39 ( 6th revision march 2021 ) both as amended up to date duly loaded into wagons / road vehicles. [ warranty period: 60 months after the date of delivery ]