A 3D model of a road sign, featuring triangular shape with red border, white background, and black left turn arrow, and a warning design aesthetic. It has clean, precise edges and is suitable for road safety and traffic guidance.

A 3D model of a narrowing road warning sign, featuring a red border, white background, and black narrowing road symbols, with a highly recognizable warning design. It has a low polygon count and is suitable for road safety applications and traffic warning systems.

A 3D model of a traffic warning sign, featuring a triangular red border, white background, and red, yellow, green circular symbols. It has a classic warning style with high detail, suitable for traffic safety scenarios and road design references. （类目纠正：原"Other"不准确，应为"Traffic Warning Sign"）

A 3D model of a slope warning road sign, featuring a red and white triangular border, black slope pattern with "10%" text, and a road safety aesthetic. It has low polygon count and clean 3D rendering, suitable for traffic route safety information display.