Single Column Vertical T-traffic road brand is divided into three parts, namely the upper, middle and lower. The main part of the forum on the Notes in this section of the information name, the frame is made of welded aluminum or stainless steel, the layout set is aluminum or galvanized plate, and then affixed to a layer of reflective film. Reflective film reflective film divided into domestic and imported 3M reflective film. (Note: The entire upper sections may also refer to the direct use of acrylic plastic injection molding) in accordance with national standards for road traffic signs of different sections of different layouts, trunk road signs layout size 1500 * 360mm, secondary roads with signs forum size is 1200 * 360mm. Layout blue east-west direction, green for the north-south direction. Central is composed of a single column with the most hot dip tube (galvanized pipes), galvanized pipe diameter has four 114mm / 89mm / 76mm / 60mm, there is not the same thickness 2mm / 2.5mm / 3mm / 4mm. Generally with bottom flange and single-column welded together, the flange has a garden is also well-size requirements based on customer demand. (You can also use the lower part of cast iron) or more is a single column Transit brand brief details please contact me.