桥式起重机吊钩总成白底展示

写实工业产品展示图，纯白背景，一台灰色桥式起重机吊钩总成居中横置；水平主梁贯穿画面，两端端梁带行走轮和安装结构，中部有圆柱形卷筒、电机和减速机组件，双吊索垂直下垂，末端为金属吊钩；设备表面为哑光灰色金属，带轻微磨损和结构接缝；正视平视、主体完整、居中构图、均匀柔和棚拍光、无背景杂物、宽画幅比例约5:2。

Realistic industrial product display image on a pure white background, a gray overhead bridge crane hook assembly centered horizontally; the horizontal main girder spans the frame, end trucks with travel wheels and mounting structures at both ends, cylindrical drum, motor and gearbox components in the middle, two vertical wire ropes descending to a metal hook; matte gray metal surfaces with slight wear and structural seams; front elevation, centered composition, even soft studio lighting, no background clutter, wide aspect ratio about 5:2.