... fences, security fences, barbed wire fences, chain link fence, expanded metal fences, etc.Materials: low carbon steel ... :· Heavy duty crowd control/pedestrian barriers (portable fence, temporary fence or removable fence) · Temporary fencing to secure construction sites and ... Infill pickets: 14mm, 16mm, 20mm, 25mm O.D. 60mm · Picket spacing: 100mm, 190mm, 200mm spacing · Finish: hot-dipped galvanized ...