灰色双层金属推车3D线框模型

浅灰色金属双层服务推车3D灰模，矩形台面带三面挡边，左右两侧有延伸把手，前部并列两个抽屉，抽屉面板带内凹横向拉手，框架立柱与横梁可见铆钉和螺栓，下层为矩形搁板，底部四个带辐条脚轮，表面叠加三角线框、接缝线与结构分块线；白色纯净背景，物体居中，略俯视的四分之三角度，柔和均匀工作室光，整体单色浅灰，4:3画幅，3D模型展示风格。

Light gray metal two-tier service cart 3D gray model, rectangular top tray with raised edges on three sides and handles extending left and right, two side-by-side front drawers with recessed horizontal pulls, frame posts and rails with visible rivets and bolts, lower rectangular shelf, four spoked casters, triangular wireframe lines, seam lines, and structural panel divisions on the surface; clean white background, centered object, slightly elevated three-quarter view, soft even studio lighting, monochrome light gray, 4:3 aspect ratio, 3D model presentation style.