supply of different materials for construction of gravelled road from manindra das house to sunil barman house at samsad no . 03 under matalhat g . p . within dinatha-i p . s . aap no . 080512160308 , stone aggregate below 40 mm nominal size , loading unloading & stacking sand / stone aggregate less than 40 mm nominal size ) , river bed metal , stone aggregate ( single size ) : 63 mm nominal size , stone aggregate 40 mm nominal size and above , stone aggregate below 40 mm nominal size , loading unloading & stacking stone aggregate ( above than 40 mm nominal size ) , loading unloading & stacking stone aggregate ( less than 40 mm nominal size ) , stone screeint type a ( 13 . 2mm ) , higher charges of diesel road roller 8 to 10 tones , r . c . c . pipes 600 mm dia np-3 spigot , loading , unloading & stacking by manual means ( r . c . c . pipes , c . i . pipes and unreinforced cement pipes ) 600 , 700 , 750 & 800 mm dia , work site favilities , display board , gst