Tender For supply of aluminothermitwelding portions (using [aluminothermitwelding portions (using compressed air petrol/lpg pre heating system) 3 piece prefabricated mould (zircon washed) manually pressed, single shot crucible fitted with auto tamping timble for south central railway as per latest rdso specification no. irst/19 and as amended upto the date of opening of tender. 60 kg/90 uts - 25 mm gap (with accessories as anexure)]