supply of welding portionswelding portions,manufacture and supply of welding portions for fusion welding of rails by alumina thermit process for 60kg/60e1 (r-260 grade) rail joints with nominal gap of 25 mm 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 for irs t19-2021 rev.7.0, str: tdg0017 ver 4.0, (with list of consumables /equipment etc.as per annexure - a) [ warranty period: 30 months after the date of delivery ] , manufacture and supply of welding portions for fusion welding of rails by alumino thermic process for 60kg/60e1 (r-260 grade) rail joints with nominal gap of 25 mm 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 for irs t19-2021 rev.7.0, str: tdg0017 ver 4.0, (with list of consumables /equipment etc.as per annexure - a) [ warranty period: 30 months after the date of delivery ] , manufacture and supply of welding portions for fusion welding of rails by alumino thermit process for 60kg/60e1 (r-260 grade) rail joints with nominal gap of 25 mm 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 for irs t19-2021 rev.7.0, str: tdg0017 ver 4.0, (with list of consumables /equipments etc.as per annexure-a) [ warranty period: 30 months after the date of delivery ] , manufacture and supply of welding portions for fusion welding of rails by alumina thermit process for 60kg/60e1 (r-260 grade) rail joints with nominal gap of 25 mm 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 for irs t19-2021 rev.7.0, str: tdg0017 ver 4.0, (with list of consumables /equipment etc.as per annexure - a) [ warranty period: 30 months a