I. Composition of Traffic Sign Boards.

Traffic sign boards typically consist of several parts, including the base plate, sign face, post, fasteners, and foundation. The sign face is composed of aluminum plates, reflective film, tracks, and clamps.

(1) The base plate and track are both made of aluminum alloy plate. Aluminum alloy plate is an industrial construction material, used in various industries depending on its material. It can be divided into two main categories: unpainted products and painted products, based on surface treatment methods.

　　Industry applications include aircraft structures, rivets, missile components, truck hubs, packaging, and thermal insulation aluminum foil, heat exchangers, frames, wing ribs, wing spars, etc.

(2) Reflective sheeting is a pre-manufactured, ready-to-use retroreflective material. It is made using glass bead technology, micro-prism technology, synthetic resin technology, film technology, coating technology, and micro-replication technology. It typically comes in white, yellow, red, green, blue, brown, orange, fluorescent yellow, fluorescent orange, and fluorescent yellow-green. Overseas, there are also fluorescent red and fluorescent pink options available.

(3) A clamp is a component that holds or secures another material with a different material, and it falls under the category of fasteners.

Section 2: Main Traffic Signage Symbols

(1) Warning Sign: A symbol to alert vehicles and pedestrians to potential hazards ahead on the road.

(2) Prohibition Signs: Signs that prohibit or restrict certain traffic behaviors of vehicles and pedestrians.

(3) Directional Signs: Signs indicating the direction for vehicles and pedestrians to proceed.

(4) Directional Signage: Signs that convey information about road directions, locations, and distances.

(5) Tourist Area Signage: Signs providing directions and distances to tourist attractions.

(6) Road Construction Safety Signs: Signs notifying of road construction zones for passage.

(7) Speed Limit Sign: A warning sign indicating that vehicles must reduce their speed.