supply of set of gaugeset of gauge,a set of gauge consists of 18 nos different type of gauges as per following specification: 1.gauge for checking pay out length of sab (drv2-600) as per j&t drawing no.1/517(fig-4)=02 nos, 2.plug gauge for adjuster ear of sab (drv2-600) as per j&t drawing no.1/674 (fig.1)=02 nos.3.snap gauge for checking barrel spring of sab (drv2-600) as per j&t drawing no.1/812=02nos,4.plug gauge for checking inside diameter of cylinder of air brake cylinder as per j&t drawing no.1/770=12nos ( 06nos go+06 nos not go). valid calibration certificate to be provided from nabl accredited laboratory, material specification as per drawing. [ warranty period: 30 months after the date of delivery ]