tender for supply & transportation of gi top cover plate, valve spindle with wedge for 150mm alfa alfa valve, 150mm dia m.s heavy duty hose cl and hexagonal head bolt & nut for maintenance of different state owned & operated major rli schemes under malda-i (a-m) sub-division within malda-i (a-m) division under non-plan maintenance. , supply and delivery , gi top cover plate of 150 mm dia. alfa-alfa valve (c-type) 273.1 mm dia 10 mm thick and pcd 257 mm with hub internal dia 20 mm outer dia 45mm 8 nos. holes each 45 degree apart fitted for 150mm nominal bore alfa-alfa valve. , valve spindle with wedge for alfa alfa valve (c-type)-150 mm dia (7 long m.s spindle for ntp / alfa alfa valve as per is: 2074/1992.) , supply and transporatin 150mm dia.2 mm thick, 45mm width m.s. heavy duty hose clamp fitted with bols & nuts. , m16x80mm hexagonal head bolt and nut (g.i.) bearing is-1363(part-i)/1992 and for bolt is-1363(part-iii)/1992 of product grade-c with latest amendments. , m16x65mm hexagonal head bolt and nut (g.i.) bearing is-1363(part-i)/1992 and for bolt is-1363(part-iii)/1992 of product grade-c with latest amendments.