corrigendum : supply of supply of 5 no. of ttcs , supply of 5 no. of ttcs consisting of 5 no. ttus, 5 no. ttbs of 8.0m, 5 no. ttbs of 5.5m, 5 se s of ttk-1&2, 300 sets of 16mm diameter bolt with washer nut and lock nut as per spec: is_2062,is_808,g alvanization shall be carried out using the fabricator?s own steel and zinc. the steel shall conform to is 206 2 (latest revision with amendments), grade e250 (fe 410w), quality a. structural design and fabrication sh all comply with is 800 (latest revision with amendments). rolled steel sections shall conform to is 808 (late st revision with amendments). zinc shall conform to is 209 (latest revision with amendments) drw: eti c 0 009 69 r b sh-3, eti c 0009 69 r b sh-1, eti c 0009 69 r c sh-2, eti c 0009 69 r c sh-5, eti c 0009 69 r c sh-4, str: core-str-01, core-str-01 or latest. [ warranty period: 30 months after the date of deliver y ] ]