3D线框扳手模型

3D线框模型渲染，一把灰色的双头扳手，一端是开口扳手，另一端是梅花扳手。扳手表面带有明显的黑色三角形网格拓扑线。纯白背景，正面平视特写视角，突出清晰的工业设计结构，光线均匀，无明显阴影，仅展示几何形状。竖构图，画幅比例1:4。

3D wireframe model rendering, a gray double-ended wrench, one end open-ended, the other end box-end. The surface of the wrench has clear black triangular mesh topology lines. Plain white background, front view close-up perspective, highlighting clear industrial design structure, even lighting, no obvious shadows, only showing geometric shapes. Vertical composition, aspect ratio 1:4.