bids are invited for modification of vehicles mild steel sheet - thickness 12 mm grade is 2062 to 2011 e250 or equivalent s235jr carbon content 0.22 to 0.29 percent density 7890 kg m3 , ms round pipe - outside diameter 4 inch wall thickness 12 mm length 20 ft estimated rate is based on approximately 185 kg pipe weight , aluminium flat patti - width 20 mm thickness 3 mm straight smooth and free from cracks or bends , synthetic length sheet cover - automotive grade synthetic leather branded or equivalent quality thickness 3.0 mm weight 1200 95 gsm tear strength more than 60 n , hydro pneumatic riveter machine - rivet diameter 2.4 mm and 4.0 mm tool type hydro pneumatic stroke length 18 mm pulling force 9240 n , linolium sheet - thickness 4 mm to 5 mm material composition linseed oil and wood floor surface finish xf2 pur reinforcement or equivalent class class 34 bacteria resistance naturally bactericidal , automotive metal putty - polyester body filler putty with compatible hardener , white paint acrylic based enamel - high gloss finish suitable for vehicle metal body