supply of supply of bush (part finished) for rack drive coupling rod of x-class locomotive.supply of bush (part finished) for rack drive coupling rod of x-class locomotive.,bush (part finished) for rack drive coupling rod of x-class locomotive conforming to drawing no. goc/x/bu-12-00005.(item no -2 only). the material should comply with is 1458/1965 cl iv, as per the details spec ification in the enclosed reference drawing. 2. supplier should provide product material test certificate issued by na bl accreditedlab along with each supply. 3. each item should have one integral test piece and is to be parted in pr esence of railway inspection authority and handed over for inspection before machining. [ warranty period: 30 m onths after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 la cs ] ] => limited