procurement of various types of pumps, valves and accumulators etc for the use of track machine, emergency pump unit as per plasser part no:hy40.510a and substitute part no. hy40.510. make: plasser imp , rexroth imp , hydac imp, danfoss imp dy.ce / cpoh / tm / rayanapadu, andhra pradesh 5.00 numbers , servo valve as per plasser part no:el-t76.00-mo and star uk part no. 650191k make: plasser , star hydraulics uk, moog, servo control. dy.ce / cpoh / tm / rayanapadu, andhra pradesh 30.00 numbers , hydraulic 4 way valve as per plasser part no: hy6rsd-b / a and rexroth part no.4we6d6x / eg24n9k4 and veljan denision part no. 4d01-3151-0101-b1-goq-51, make: plasser , rexroth , veljan-denison , hydraulic valve as per plasser part no. hy06rsj-b and rexroth no. 4we6j6x / eg12n9k & veljan - denison part no. 4d01-3208-0302-b1-goq-51, make - plasser , parker-denison , veljan- denison, bosch -rexroth. , logic valve as per plasser part no:hy151.171 and star uk part no. sc171 make: plasser , star hydraulics uk. dy.ce / cpoh / tm / rayanapadu, andhra pradesh 8.00 numbers , pressure reducing dc valve as per plasser part no. hy511.14 / 75 or hy511.14 and rexroth part no. zdr10da2-30 / 75y-so52 and veljan-denision part no. zdr-05-a-5-a1, make - plasser , rexroth , veljan-denison. , pressure limiting valve as per plasser part no. dbds.6g1.x / 315, make : plasser , rexroth , reducing valve as per plasser part no. hy511.51 and rexroth part no: 3dree16p- 7x / 100xyg24k31a1v, make: plasser imp, rexroth , hydraulic valve as per plasser part no: 62.05.2000.43 / a and rexroth part no. h- 4wh25h6x-so872, make: plasser imp, rexroth , hydraulic accumulator as per hydac part no. sb 330-32a1 / 112-330a as per plasser part no. hy156.09 make: plasser imp , hydac imp , filter element as per plasser part no. 1300r005bn3hc / -kb-so387, make - plasser imp, hydac