With increasing speed of transport, the tendency is for countries to adopt pictorial signs or otherwise simplify and standardize signs, to facilitate international travel where language differences can create barriers and in general to reduce the risks in driving. Such pictorial signs use symbols in place of words and are usually a result of international standards. Relating to these products' manufacturing method, this is a brief introduction. First, the aluminum plate is cut into the shape of corresponding signs. Second, we use a 680 ton oil-hydraulic press to dash into the products we need. Third, we use professional welded equipment to weld solid the aluminum alloy chute. The last one is the spray-painted craft on the surface.