supply of set of cbc gauges one set consist of 06 gauges , set of cbc gauges one set consist of 06 gauges for checking of aar h type centre buffer c oupler of lhb coaches. gauges made of hard steel alloy or stainless steel with hardness 45-50 hrc as per attached specifications (i) contour maintenance gauge (knuckle profile gauge): apta drawing/gauge no.31 000 (ii) aligning wing limit gauge: apta drawing/gauge no. 32600 (iii) contour condemning limit gauge (j aw-gap gauge) apta drawing/gauge no. 34100-1 (iv) knuckle nose wear and stretch limit gauge: apta dra wing/gauge no.34100-2a (v)vertical height aligning wing pocket & guard arm gauge (go gauge-must pas s): apta drawing/gauge no.34101-4(vi) vertical height condemning limit aligning wing pocket & guard arm gauge (no-go gauge-must not pass): apta drawing/gauge no.44250-5.make/brand - ganpathy chennai/ s anrok/escorts/ftil or similar ( any other past successful supplier.) calibration certificate should be issued fr om nabl approved lab. [ warranty period: 30 months after the date of delivery ] ]