tender for supply of material for construction of culvert at koovakkallu mayyanganam alathadi road ward 13 drainage -material supply , detailed estimate , stone aggregate ( single size ) : 40 mm nominal size , stone aggregate ( single size ) :20 mm nominal size , coarse sand ( zone iii ) , portland cement , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , vibrator ( needle type 40 mm ) , sundries , r.c.c. pipes np2 class 1000 mm dia , r.c.c. collars np2 class 1000 mm dia , fine sand ( zone iv ) , wall form panel 1250x500 mm , 100 mm channel shoulder 2.5 m long , double clip ( bridge clip ) , m.s. tube 40 mm dia , stone for masonry work , stone aggregate ( single size ) : 10 mm nominal size , twisted steel / deformed bars , single clip