双气瓶手推车

写实产品摄影，纯白背景，绿色管状金属手推车，底座与框架为绿色，左右各有一个黑色轮子。车上固定两只压缩气瓶：左侧为较高的绿色钢瓶，右侧为较矮的红色钢瓶，瓶身带有磨损、污渍和斑驳痕迹。两只气瓶顶部均装有黄铜色减压阀和双圆表盘压力表，连接红色与深绿色软管，黑色束带横向固定瓶体。正面略侧视角，完整主体居中，全身构图，均匀柔和棚拍光线，清晰展现金属、橡胶和漆面质感，无文字，竖向画幅。

Realistic product photography on a pure white background, a green tubular metal hand truck with a green base and frame and two black wheels. Mounted on the cart are two compressed gas cylinders: a taller green steel cylinder on the left and a shorter red steel cylinder on the right, both with worn paint, stains, and scuffs. Each cylinder has a brass pressure regulator and dual round gauges on top, with red and dark green hoses connected, and black straps securing the cylinders horizontally. Slight front-side view, full-body composition, centered complete subject, even soft studio lighting, clear metal, rubber, and painted surface textures, no text, vertical format.