supply of set of cbc gauges one set consist of 06 gauges for checking of aar h type centre buffer coupler oflhb coaches. gauges made of hard steel alloy or stainless steel with hardness 45-50 hrc as per attachedspecifications ( i ) contour maintenance gauge ( knuckle profile gauge ) : apta drawing / gauge no.31000 ( ii ) aligningwing limit gauge: apta drawing / gauge no. 32600 ( iii ) contour condemning limit gauge ( jaw-gap gauge ) aptadrawing / gauge no. 34100-1 ( iv ) knuckle nose wear and stretch limit gauge: apta drawing / gauge no.34100-2a ( v ) vertical height aligning wing pocket & guard arm gauge ( go gauge-must pass ) : apta drawing / gauge no.34101-4 ( vi ) vertical height condemning limit aligning wing pocket & guard arm gauge ( no- go gauge-must not pass ) : aptadrawing / gauge no.44250-5 [ warranty period: 30 months after the date of delivery ]