灰色液化气钢瓶3D线框模型

3D线框渲染风格的灰色液化石油气钢瓶单体模型，球形罐体表面覆盖均匀的四边形网格线和局部三角形拓扑线，罐体中下部有一圈水平凸起环带，顶部为拱形金属护罩提手，中央安装带手轮的阀门和侧向圆形出气口，底部是环形底座并带多个圆形开孔；纯浅灰无缝背景，无人物、无环境道具，正面略高于视平线的三分之四视角，全景居中构图，主体占画面大部分，柔和均匀的棚拍光，冷灰色调，突出工业设计结构，3:5竖幅。

3D wireframe-rendered gray liquefied petroleum gas cylinder as a single object, rounded spherical tank with even quad mesh lines and some triangular topology lines, a horizontal raised band around the lower middle, an arched metal handle guard on top, a central valve with handwheel and side circular outlet, a ring-shaped bottom base with multiple circular holes; plain light gray seamless background, no people, no environmental props, three-quarter view slightly above eye level, full-object centered composition, subject occupying most of the frame, soft even studio lighting, cool gray tone, emphasizing industrial design structure, 3:5 portrait aspect ratio.