procurement of pneumatic valves, cylinders, stop cock etc., for the use of track machines..!, safety valve as per plasser part no:90204, sunpart no.7500232 make: plasser imp, sunpart, itt, duncan or its equivalent dy.ce / cpoh / tm / rayanapadu andhra pradesh 1.00 numbers , pneumatic valve as per plasser part no:90201 and sunpart part no. 7500218 , make: plasser imp, sunparts or its equivalent , indirect brake valve as per plasser part no. 90366 and sunparts no: 7500221, make: plasser imp, knorr bremse imp, sunparts or its equivalent , pneumatic brake valve as per plasser part no. 90370 and duncan part no. g298 / 15, make : plasser imp, duncan or its equivalent dy.ce / cpoh / tm / rayanapadu andhra pradesh 20.00 numbers , pneumatic valve as per plasser part no.90202 and sunpat part no. 7500219, make: plasser imp, sunpart or its equivalent , datum / pneumatic valve as per plasser part no:90341 and duncan part no. a53024-ytf. make: plasser, duncan or its equivalent , air unloader valve as per plasser part no:90200-a substitute 90200 make: plasser imp, itt or its equivalent. , unloader valve as per tvs part no. m302310, make: wabco, tvs or its equivalent , ke valve ( control valve ) as per plasser pt no. 90350 / 3.8 ind.make: plasser, escorts or its equivalent