复古壁挂式电话3D线框模型

竖版2:3画幅，白色纯净背景，正面平视单一视角，主体居中的灰度3D线框网格渲染图；主体为一件复古壁挂式电话/振铃盒模型，外形由圆角矩形箱体、上方带球形旋钮的挂钩支架、中部大圆形带一周圆孔的拨盘/发声盘、底部横向圆杆与两端倒钟形铃铛组成；箱体左侧可见铰链结构，表面覆盖密集三角网格线，未上材质，以浅灰线框和淡淡阴影表现体积，柔和均匀的棚拍光线，无人物、无文字、无其他场景。

Vertical 2:3 aspect ratio, clean white background, frontal eye-level single view, centered grayscale 3D wireframe mesh render of a vintage wall-mounted telephone or ringer box; the object has a rounded rectangular cabinet, an upper hook bracket with a ball knob, a large central circular dial/sound plate ringed with small holes, and a lower horizontal rod with two inverted bell-shaped fixtures at both ends; visible hinges on the left side of the cabinet, dense triangulated mesh lines across the surfaces, no material textures, volume shown with light gray wireframe and subtle shadows, soft even studio lighting, no people, no text, no surrounding scene.