supply of complete set of inspection gauges rdso t-9003 (part) or rdso t-6155 (part-2) (alteration-4) for 10125 mm. thick-web curved switches bg for 60 kg. one set consists of 1. end template at actual toe of switch - gauge no.1/a (for rh tongue rail) 2. end template at actual toe of switch - gauge no.1/b(for lh tongue rail). 3. head width checking gauge at 2678 mm from ats (22 mm head thickness) -gauge 2a & 2b 3. head width checking combined gauge at 2678 mm from ats (22 mm head thickness) - gauge no. 2/1. 4. head width checking gauge at 4958 mm from ats (55 mm head thickness) -gauge 3a & 3b 5. head width checking combined gauge at 4958 mm from ats (55 mm head thickness) - gauge no. 3/1. with necessary requirements of (1) duly signed calibration certificates of each gauge from any government approved gauge certification lab. (2) certificate issued by government agencies to lab.(3) autocad 01:01 drawings of each gauge in set.