supply of set of valves [leveling valve qty. 02 nos. and duplex check valve qty. 1 no.] to ftrtil leveling valve part no. 038001000 duplex check valve part no. 039001500 or kbil leveling valve part no. ii68831 duplex check valve part no. 1.3.1902 or m/s escorts leveling valve drg. no. 3eb6631 alt 03 duplex check valve drg. no. 3eb6632 alt.03 [ one set consisting of 02 items and 3 nos.]. material to be procured from rdso approved vendor for air suspension control equipments conforming to rdso spec. no. c-k 407(rev.04) latest amendment of march 2023. , set of valves [leveling valve qty. 02 nos. and duplex check valve qty. 1 no.] to ftrtil leve ing valve part no. 038001000 duplex check valve part no. 039001500 or kbil leveling valve part no. ii688 31 duplex check valve part no. 1.3.1902 or m/s escorts leveling valve drg. no. 3eb6631 alt 03 duplex che ck valve drg. no. 3eb6632 alt.03 [ one set consisting of 02 items and 3 nos.]. material to be procured from rdso approved vendor for air suspension control equipments conforming to rdso spec. no. c-k 407(rev.0 4) latest amendment of march 2023. [ warranty period: 30 months after the date of delivery ] ]