做旧金属手提箱道具

写实产品渲染风格，一个深棕黑色做旧金属手提箱，矩形扁平箱体，正面大面积无图案，表面斑驳锈迹和暗色磨痕，顶部有细金属丝提手，两侧有金属扣件，纯白背景，正面平视居中构图，完整展示箱体，柔和工作室光线，突出金属粗糙质感，4:3画幅。

Realistic product render style, a dark brown-black weathered metal briefcase, rectangular flat body, large blank front face, mottled rust and dark abrasion marks on the surface, thin wire handle on top, side metal latches, isolated on a pure white background, straight-on centered composition, full object visible, soft studio lighting, emphasizing rough metal texture, 4:3 aspect ratio.