manufacture and supply of c i distance bracket for lc conforming to rdso drg no t4917 specification conform to is 210 1962 grade 20 and irs specification irs t 10 2000 along with corrigendum no 1 or latest corrigendum if any the alteration in drawing specifications issued by rdso one month prior to tender closing date shall be applicabl e to this tender warranty period 30 months after the date of delivery quantity tolerance 5 age item category normal total po value variation permitted max 8