A 3D model of a narrowing road warning traffic sign, featuring triangular shape, red border, white background, black narrowing symbols, and metal pole, with visible, standard warning design. Detailed 3D rendering, suitable for road safety education and navigation integration.

A 3D model of a bridge, featuring distinctive arch-shaped towers, steel cables, and red base decorations, with a modern aesthetic. It has low-poly technical characteristics and is suitable for digital art, architectural visualization, or decorative design.

A 3D model of a suspension bridge, featuring stone piers, metal cables, and wooden planks, with a classical design aesthetic. It has low polygon count and is suitable for decorative display, architectural visualization, or scene restoration.

A 3D model of a bridge, featuring an arched structure, metallic towers, steel cables, and a wooden deck, with a modern minimalist aesthetic. It has low polygon count and detailed structural details, suitable for landscape decoration and architectural design reference.