supply of 01 hex nipple size 1/4 inch suitable for pneumatic connection and working pressure of 08 kg/cm2, make- spac, cemcon, imi norgren or similar (item use for modification in epfs in lhb coaches) 02 pneumatic non return valve (nrv) size 1/4 inch both side female threaded, make- spac, cemcon, imi norgren or similar (material used for pfs in coaches)01 hex nipple size 1/4 inch suitable for pneumatic connection and working pressure of 08 kg/cm2, make- spac, cemcon, imi norgren or similar (item use for modification in epfs in lhb coaches) 02 pneumatic non return valve (nrv) size 1/4 inch both side female threaded, make- spac, cemcon, imi norgren or similar (material used for pfs in coaches),hex nipple size 1/4 inch suitable for pneumatic connection and working pressure of 08 kg/cm 2, make- spac, cemcon, imi norgren or similar (item use for modification in epfs in lhb coaches) [ war ranty period: 30 months after the date of delivery ] ] , pneumatic non return valve (nrv) size 1/4 inch both side female threaded, make- spac, cem con, imi norgren or similar (material used for pfs in coaches) [ warranty period: 30 months after the d ate of delivery ] ]