supply of water supply maintenance items in year 2020-21 , nut bolts ( different sizes , half /full threaded , grease , rubber sheet ( any thickness ) , nylone rope , p . v . c . tasla , gland rope , tata make spade ( phaora ) , tata make axe ( ganti ) , c . i . flange 50 mm , c . i . flange 80mm , c . i . flange 100 mm , c . i . flange 150 mm , flange rubber packing 50 mm , flange rubber packing80 mm , flange rubber packing 150 mm , cut out ( sentinel , flora or other standard make 63 amp . , cut out ( sentinel , flora or other standard make 100 amp . , cut out ( sentinel , flora or other standard make 200 amp . , main switch ( sentinel , flora or other standard make 63 amp . , main switch ( sentinel , flora or other standard make 100 amp . , main switch ( sentinel , flora or other standard make 200 amp . , flange rubber packing 100 mm , hexa blade complete wth blade , hexa blade ( blade only , insulated aluminium wire 2 . 5 sq mm isi/iso mark , insulated aluminium wire 4 . 0 sq mm isi/iso mark , insulated aluminium wire 6 . 0 sq mm isi/iso mark , insulated aluminium wire 10 . 0 sq mm isi/iso mark , insulated aluminium cable two core 4 . 0 sq mm isi/iso mark , insulated aluminium cable two core 6 . 0 sq mm isi/iso mark , insulated aluminium cable four core 10 . 0 sq . mm isi/iso mark , insulated aluminium cable four core 12 . 0 sq . mm isi/iso mark , 3- core copper cable ( mohta/finolex/any other isi mark 2 . 5 sqmm , 3- core copper cable ( mohta/finolex/any other isi mark 4 . 0 sqmm , 3- core copper cable ( mohta/finolex/any other isi mark 6 . 0 sqmm , 3- core copper cable ( mohta/finolex/any other isi mark 10 . 0 sqmm , 3- core copper cable ( mohta/finolex/any other isi mark 16 . 0 sqmm , hdpe flexible pipe hasti or other standard make 50 mm , hdpe flexible pipe hasti or other standard make 80 mm , c . i . connector/hex nipple 50 mm , c . i . connector/hex nipple 80 mm , c . i . connector/hex nipple 100 mm , hose clip 50 mm , hose clip 80 mm , hose clip 100 mm , transformer oil , insulated copper wire 1/18 , insulated copper wire 3/20 , insulated copper wire 10 . 0sq mm , p . v . c . rigid pipes 4kg/cm2 class -isi mark 63 mm o . d . , p . v . c . rigid pipes 4kg/cm2 class -isi mark 75 mm o . d . , p . v . c . rigid pipes 4kg/cm2 class -isi mark 90 mm o . d . , p . v . c . rigid pipes 4kg/cm2 class -isi mark 110 mm o . d . , p . v . c . rigid pipes 4kg/cm2 class -isi mark 160 mm o . d . , p . v . c . rigid pipes 6kg/cm2 class -isi mark 63 mm o . d . , p . v . c . rigid pipes 6kg/cm2 class -isi mark 75mm o . d . , p . v . c . rigid pipes 6kg/cm2 class -isi mark 90 mm o . d . , p . v . c . rigid pipes 6kg/cm2 class -isi mark 110 mm o . d . , p . v . c . rigid pipes 6kg/cm2 class -isi mark 160mm o . d . , p . v . c . rigid bend 4kg/cm2 class -isi mark 63 mm o . d . , p . v . c . rigid bend 4kg/cm2 class -isi mark 75 mm o . d . , p . v . c . rigid bend 4kg/cm2 class -isi mark90mmo . d . , p . v . c . rigid bend 4kg/cm2 class -isi mark110mmo . d . , p . v . c . rigid bend 4kg/cm2 class -isi mark160mmo . d . , p . v . c . rigid elbow 4kg/cm2 class -isi mark 63 mm o . d . , p . v . c . rigid elbow 4kg/ cm2 class -isi mark 75mmo . d . , p . v . c . rigid elbow 4kg/ cm2 class -isi mark 90mmo . d . , p . v . c . rigid elbow 4kg/ cm2 class -isi mark11ommo . d . , p . v . c . rigid elbow 4kg/ cm2 class -isi mark 160mmo . d . , p . v . c . rigid coupler 4kg/ cm2 class -isi mark 75mmo . d . , p . v . c . rigid coupler 4kg/ cm2 class -isi mark 90mmo . d . , p . v . c . rigid coupler 4kg/ cm2 class -isi mark 110mmo . d . , p . v . c . rigid coupler 4kg/ cm2 class -isi mark 160mm o . d . , p . v . c . rigid tee 4kg/ cm2 class -isi mark 63 mm o . d , p . v . c . rigid tee 4kg/ cm2 class -isi mark 75mm o . d . , p . v . c . rigid tee 4kg/ cm2 class -isi mark 90mm o . d . , p . v . c . rigid tee 4kg/ cm2 class -isi mark110 mm o . d . , p . v . c . rigid tee 4kg/ cm2 class -isi mark160 mmo . d . , p . v . c . rigid tee 6kg/ cm2 class -isi mark 63 mm o . d . , p . v . c . rigid tee 6kg/ cm2 class -isi mark 75mm o . d . , p . v . c . rigid tee 6kg/ cm2 class -isi mark 90mm o . d . , p . v . c . rigid tee 6kg/ cm2 class -isi mark110 mm o . d . , p . v . c . rigid tee 6kg/ cm2 class -isi mark160 mm o . d . , p . v . c . rigid reducer 4kg/ cm2 class -isi mark 63x75 mm o . d . , p . v . c . rigid reducer 4kg/ cm2 class -isi mark 75x90 mm o . d . , p . v . c . rigid leakage coupler4kg/cm2 classisi mark 75mmo . d . , p . v . c . rigid leakage coupler4kg/cm2 classisi mark 90mmo . d . , p . v . c . rigid leakage coupler4kg/cm2 classisi mark 110mmo . d . , p . v . c . rigid bend 6kg/cm2 class -isi mark 63 mm o . d . , p . v . c . rigid bend 6kg/cm2 class -isi mark 75mmo . d . , p . v . c . rigid bend 6kg/cm2 class -isi mark90mmo . d . , p . v . c . rigid bend 6kg/cm2 class -isi mark110mmo . d . , p . v . c . rigid bend 6kg/cm2 class -isi mark160mmo . d . , p . v . c . rigid elbow 6kg/ cm2 class -isi mark 63 mm o . d , p . v . c . rigid elbow 6kg/ cm2 class -isi mark 75 mm o . d , p . v . c . rigid elbow 6kg/ cm2 class -isi mark 90mm o . d . , p . v . c . rigid elbow 6kg/ cm2 class -isi mark110 mmo . d . , p . v . c . cock 63 mm , p . v . c . cock 90 mm , p . v . c . sluice valve 63 mm , p . v . c . sluice valve 90 mm , g . i . pipes -a ( light class ) standard make isi mark 50mm , g . i . pipes -a ( light class ) standard make isi mark 80 mm , g . i . pipes -a ( light class ) standard make isi mark 100mm , g . i . pipes -a ( light class ) standard make isi mark 150mm , g . i . pipes -b ( medium class ) standard make isi mark 50 mm , g . i . pipes -b ( medium class ) standard make isi mark 80 mm , g . i . pipes -b ( medium class ) standard make isi mark 100 mm , g . i . pipes -b ( medium class ) standard make isi mark 150 mm , g . i . pipes -b ( medium class ) standard make socket50mm , g . i . pipes -b ( medium class ) standard make socket 50 mm heavy 8 no . thread me , g . i . pipes -b ( medium class ) standard make socket 80mm , g . i . pipes -b ( medium class ) standard make socket 100mm , g . i . pipes -b ( medium class ) standard make socket 150 mm , g . i . pipes -b ( medium class ) standard make elbow 50 mm , g . i . pipes -b ( medium class ) standard make elbow 80 mm , g . i . pipes -b ( medium class ) standard make elbow 100 mm , g . i . pipes -b ( medium class ) standard make elbow 150 mm , g . i . pipes -b ( medium class ) standard make bend 50 mm , g . i . pipes ( medium class ) standard make bend 80 mm , g . i . pipes ( medium class ) standard make bend 100 mm , g . i . pipes ( medium class ) standard make bend 150 mm , g . i . pipes ( medium class ) standard make tee 50 mm , g . i . pipes ( medium class ) standard make tee 80 mm , g . i . pipes ( medium class ) standard make tee 100 mm , g . i . pipes ( medium class ) standard make tee 150 mm , g . i . cock 50 mm , g . i . cock 80 mm , g . i . clamp 50 mm complete heavy , g . i . clamp 80 mm complete heavy , g . i . reducer 6kg/ cm2 class -isi mark 50x65 mm ( 2x2 . 5 inch ) , g . i . reducer 6kg/ cm2 class -isi mark 50x80 mm ( 2x3 inch ) , c . i . d- joint with rubber ring and nut bolts complete 50 mm ( as per i . s . 1536: 1989 ) , c . i . d- joint with rubber ring and nut bolts complete 80mm ( as per i . s . 1536: 1989 ) , c . i . d- joint with rubber ring and nut bolts complete 100mm ( as per i . s . 1536: 1989 ) , c . i . d- joint with rubber ring and nut bolts complete 150mm ( as per i . s . 1536: 1989 ) , d-joint rubber ring 50 mm ( as per i . s . 1536: 1989 ) , d-joint rubber ring 80 mm ( as per i . s . 1536: 1989 ) , d-joint rubber ring 100 mm ( as per i . s . 1536: 1989 ) , d-joint rubber ring 150 mm ( as per i