supply of gauges , knuckle locking face gauge (gauge no. 5) of g-80 manual page no. 64 material carb on tool steel to is 3748/90 hardness -40/45 hrc , firm should supply calibration certificate from nabl/govt. approved laboratory with minimum one year validity make: pie/ganapathy/prasad/ao ge [ warranty period: 30 months after the date of delivery ] ] , cbc lock thickness and parallel gauge rd. vide rdso drg. no. wd-84073-s-59-rc material carbon tool steel to is 3748/90 hardness -40/45 hrc , and supply with calibration certifica te. make: ganapathy/pie/aoge/prasad [ warranty period: 30 months after the date of delivery ] ] , set of gauges for checking of anti creep ledge gauge no. 06 & 07 for cbc of wagon stock, m aterial carbon tool steel to is 3748/90 hardness -40/45 hrc , firm should supply calibration certificate fro m nabl /govt. approved laboratory with minimum one year validity make/brand: ganapathy/aoge/pie/pra sad [ warranty period: 30 months after the date of delivery ] ] , contour worn limit gauge 1 & 2 and knuckle nose wear gauge no 3 & knuckle nose wear and stretch limit gauge gauge no 4 of wagon maintenance manual dec-2022 , material carbon tool steel to is 3748/90 hardness -40/45 hrc , firm should supply calibration certificate from nabl/govt. appr oved laboratory with minimum one year validity make: pie/ganapathy/prasad/aoge [ warranty pe riod: 30 months after the date of delivery ] ]