supply of for manufacture and supply of improved switch expansion joint to rdso drg no.t-6930 with latest alterations for 52 kg rails with all fittings complete excluding grsp, conforming to irs specification t-10- 2000 with latest amendments up to date of opening of tender. [ warranty period: 30 months after the date of delivery ] , for manufacture and supply of improved switch expansion joint to rdso drg no.t-6930 with latest alterations for 52 kg rails with all fittings complete excluding grsp, conforming to irs specification t-10- 2000 with latest amendments up to date of opening of tender. [ warranty period: 30 months after the date of delivery ] , for manufacture and supply of improved switch expansion joint to rdso drg no.t-6930 with latest alterations for 52 kg rails with all fittings complete excluding grsp, conforming to irs specification t-10- 2000 with latest amendments up to date of opening of tender. [ warranty period: 30 months after the date of delivery ] , for manufacture and supply of improved switch expansion joint to rdso drg no.t-6930 with latest alterations for 52 kg rails with all fittings complete excluding grsp, conforming to irs specification t-10- 2000 with latest amendments up to date of opening of tender. [ warranty period: 30 months after the date of delivery ]