a,Steel bollard, Bollards and barriers. b,Used Mild steel pipe,OD130 x ... d,Domed top. Steel bollard, Traffic barrier, bollards and barriers, galvanized traffic barriers, Stainless steel bollard 1) ... 125mm, 130mm, 140mm, 159mm, 168mm, 190mm, 219mm..and so on.6) Used material have Stainless steel pipes, ... Carbinox tubes, Galanized pipes, Mild steel pipes....and so on.7) The bollards have some different ...