supply of maintenance kit for duplex check valvemaintenance kit for duplex check valve,maintenance kit for duplex check valve of m/s faiveley make to ftil part no.790039105 for air sp ring suspension of lhb coaches consisting of 04 items conforming to rdso specn.no.c-k-407 rev. 03, amen dment - 1 of september 2018 (i) valve seat (sub assly) to ftil part no. 039101000, qty/set02 nos. (ii) compres sion spring to ftil part no.039802000 qty/set- 02nos. (iii) joint (seal) (26x33x1) to ftil part no. 039703000,qt y/set - 02nos.(iv)joint (19x33x1) to ftil part no.039704000, qty/set -01 no. [ warranty period: 24 months aft er the date of delivery ] ] sse/air brake shop/ubl karnataka 141.00 set