supply of materials for chick shelter or duck shelter at various places under lochanpur gram panchayat , description of items , stone aggregate ( single size ) 20mm nominal size , stone aggregate ( single size ) 10mm nominal size , portland cement , wire mesh ( rabbit ) , galvanised steel corrugated sheets , galvanised steel bolts & nuts 6mm dia and 25 mm long round head with slots , galvanised steel j or l hooks 8 mm dia , g . i limpet washer , bitumen washer , galvanised steel plain sheet , seam bolts and nuts 6mm dia and 25 mm long , g . i plain washer for seam bolts , loading unloading & stacking sand/stone aggregate ( less than 40mm nominal size ) , 1st class traditional bricks ( kiln burnt ) , coarse sand , medium sand , silver sand , polythene sheet ( 150 gm per sqm ) , other local wood , bright finished or black enameled mild steel butt hinges 50x37x1 . 50 mm , m . s structural with hollow sections ( square or rectangular shape ) conforming to is806-1968 & is1161-1998 ) span up to 12m , display board