supply of manufacture and supply of curve sej drg t-8926 , manufacture and supply improved switch expansion joint for long welded rail (with 65 mm max. gap) for 2 to 4 degree curve as per rdso drg. no. rdso/t-8926 (latest alteration) for 60e1 rail sectio n on psc sleepers with all fittings(including cgrsp) as per rdso drawing(latest alt.).irs specification irs: t-10-2025 with latest alterations. note: list of fittings for each set of improved switch expansion joint as pe r the rdso drawing t-8926 alt.2, is attached in annexure-1. (term-latest-wherever used will mean the alter ation/amendments up to 10 days prior to tender closing date) [ warranty period: 30 months after the dat e of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]