General Engineering Purposes (IS 2266:2019)Suspension Bridges (IS 9282:2021)General Engineering Purposes (IS 2266:2019) 6 x 19 M 6 x 19 S 6 x 21 F, 6 x 25 F 6 x 37 M 6 x 26 SW, 6 x 31 SW, 6 x 36 SW, 6 x 41 SW, 6 x 49 SWS, 6 x 55 SWS 8 x 19 S 8 x 25 F 8 x 36 SW, 8 x 37 SW 18 x 7 34 x 7, 36 x 7 Suspension Bridges (IS 9282:2021) 7 x 7 7 x 19 7 x 37 1 x 7 1 x 19 1 x 37 1 x 61 1 x 91 1 x 127 1 x 169