Tender For supply of spares for instrument air compressor - bush (big) for gear oil pump of instrumentair compressor (main) ofammonia-1 plant as per the following , bush (small) for gear oil pump of instrumentair compressor (main) ofammonia-1 plant as per the following , cylinder for lp stage of instrument aircompressor (main)of ammonia-1 , big end bearing (main bearing) for crankshaft nstrument air compressor , sharco oil filter element dn 25 dia type1730m orific for nitrogen , gear pump assembly for instrument aircompressor (main) of ammonia-1 , cylinder for hp stage of instrument aircompressor (main)of ammonia-1 , inner cover l.p.pn 2820010350 for intrument , outer cover h.p. part no. 2820020250 , piston, ring & rod assembly l.p. pn , h.p. piston, ring & rod assembly part no