providing & erecting crash barriers on l039-lodna to gundna road. pkg no. jk04-299-providing & erecting w metal beam crash barrier comprising of 3mm thick corrugated sheet metal beam rail, 70 cm above ground level fixed on ismc series channel vertical post 150x75x5 mm spaced 2m centre to centre 1.80m high ,1.1m below ground level, all parts & fitments to be galvanised by hot dip process, all fittings to conform to is:1367 & is:1364 metal beamrail to be fixed on vertical post with spacers of channel section 150x75x5 mm, 330mm long complete as per clause800.10 complete as per specifications including providing and fixing of2 inch wide 3m retro reflective tape on post and w beam of metallic crash barrier and welding of nut bolts.