tender for fabricated and galvanized b-series steel structures b-225 with batten plates as per rdso drgno. eti/c/0071, rev-e or latest using fabricators own steel and zinc,steel confirming to is:2062:2011;is:800gr.e-250 (fe 410w) quality a & is 808/1989 and zinc to is:209/1992 and rdso spec no. eti/ohe/13(4/84) witha&c slip no. 1,2 & 3 for galvanization. each b-225 mast of 9.5 mtrs length with approximate wt. of 492.1 kg. mc225 mm x 80 mm shall be used.