supply of inspection gauges , manufacturing and supply of a complete set of inspection gauges as per rdso drg no t-900 3(part) (alt-3) with the latest alt., for 10125 mm curved switch with 60e1a1 thick web tongue rails for 1 in 12 turnout b.g. (1673 mm) for 60e1 rail on psc sleepers to drawing no. rdso/t-6155. one set consists of one set consists of 1) end template at actual toe (for right side tongue rail)gauge no. 1/a, 2) end templa te at actual toe (for leftt side tongue rail) gauge no. 1/b, 3) head width checking gauge at 2678 mm from ats (22 mm head thickness) - gauge no. 2 (gauge 2a & 2b), 4) head width checking combined gauge at 2 678 mm from ats (22 mm head thickness) - gauge no. 2/1, 5) head width checking combined gauge at 49 58 mm from ats (55 mm head thickness) - gauge no. 3 (gauge 3a & 3b), 6) head width checking combine d gauge at 4958 mm from ats (55 mm head thickness) - gauge no. 3/1 (duly packed in well cushioned do uble decker system for easy handling) [ warranty period: 30 months after the date of delivery ] ]