灰色鲨鱼3D线框模型展示

单一灰色鲨鱼3D线框网格模型，侧面朝右，流线型身体，背鳍、胸鳍、尾鳍结构清晰，表面覆盖细密均匀的网格线，整体为哑光浅灰色；鲨鱼由一根细金属支撑杆固定在矩形双层灰色展示底座上，底座带方形金属连接片和斜切边缘；纯白背景，斜侧视产品展示构图，主体居中偏右，完整展现鲨鱼全身与底座，柔和均匀棚拍光，灰色单色调，高细节3D渲染风格，16:9画幅。

A single gray shark 3D wireframe mesh model, side view facing right, streamlined body with dorsal, pectoral, and tail fins clearly defined, fine even quad wireframe covering the matte light-gray surface; the shark is mounted on a thin metal support rod above a rectangular two-tier gray display base with a square metal connector plate and beveled edges; pure white background, three-quarter product display composition, subject centered slightly right, full shark and base visible, soft even studio lighting, monochrome gray palette, detailed 3D render style, 16:9 aspect ratio.