supply of welding portion for fusion welding of rails by alumino thermic process for 52kg (90 uts) rails with 25 mm gap using cap/oxy lpg/oxy propane preheating with 3 piece mould (zr-washed) manually pressed/core shooted with auto tapping thimble & ssc as per rdso specification irs t/19-2021 rev.7.0 (with list of consumables/equipments etc. as per annexure-a).welding portion for fusion welding of rails by alumino thermic process for 52kg (90 uts) rails with 25 mm gap using cap/oxy lpg/oxy propane preheating with 3 piece mould (zr-washed) manually pressed/core shooted with auto tapping thimble & ssc as per rdso specification irs t/19-2021 rev.7.0 (with list of consumables/equipments etc. as per annexure-a).,welding portion for fusion welding of rails by alumino thermic process for 52kg (90 uts) r ails with 25 mm gap using cap/oxy lpg/oxy propane preheating with 3 piece mould (zr-washed) manua lly pressed/core shooted with auto tapping thimble & ssc as per rdso specification irs t/19-2021 rev. 7.0 (with list of consumables/equipments etc. as per annexure-a). [ warranty period: 30 months after the date of delivery ] ]