supply of inspection gauges as per rdso drg no.t-4989 , manufacture and supply of inspection gauges as per rdso drg no.t-4989 (part) for 1 in 8.5 c ms crossing b.g. for 60 kg .to drg. no. rdso/t- 4967 for use in depot. one set consists of : (a) bottom widt h gauge (at sleeper location) gauge no.1, (b) flange way clearance gauge no. 2, (c) flange way clearan ce (at throat) gauge no. 3, (d) flange way clearance (41mm) gauge no.4, (e) nose depression gauge no. 5, (f) nose thickness gauge no.6, (g) end slope gauge no.7, (h) wing rail gauge(outside) gauge no.13, (i) wing rail gauge(at nose) gauge no.14. (duly packed in well cushioned double decker system for easy han dling) [ warranty period: 30 months after the date of delivery ] ]