supply of fabricated and galvanized steel structures ttc (ttu, ttb & ttk) , fabricated and galvanized steel structures ttc (ttu, ttb & ttk) as per rdso drg.no. eti/c/ 0009/69 sh 1,2,3&5 rev-c or latest using fabricator own steel and zinc ; steel conforming to is:2062:2011, is:808; gr.e 250 [fe4 low] quality a and is:808/1989 and zinc to is:209/1992 and rdso spec no. 1,2 & 3 o r latest for galvanization (i) ttu (10.135 m long, weight-616.635 kg) - 21 nos - [total weight - 12.949 mt] ( ii) ttb of 8.0 m length of weight 362.829 mt - 12 nos [total weight -4.354 mt] (iii) ttb of 5.0 m length of w eight 263.312 mt - 11 nos [total weight - 2.896 mt] & (iv) ttk 1 & 2 of weight 87.68 mt - 20 sets [total we ight - 1.753 mt]. total weight of 21.952 mt. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]