PORTABLE MEDICAL OXYGEN BOTTLE CYLINDER HAND TRUCK TROLLEY CART 3D model is available on CGTrader for $22. Original author: SURF3D. Specs: 376399 polys, 268012 verts.
STL (Stereolithography, filesize: 17.9 MB), OBJ (OBJ, filesize: 35.1 MB), DAE (Collada, filesize: 58.9 MB), BLEND (Blender, filesize: 32.9 MB), DWG (AutoCAD, filesize: 9.23 MB), 3DM (Rhinoceros 3D, filesize: 34.5 MB), 3DS (3D Studio, filesize: 10.2 MB), FBX (Autodesk FBX, filesize: 11.1 MB), SKP (Sketchup, filesize: 23.5 MB), MAX (Autodesk 3ds Max, filesize: 67.8 MB), IGE (IGES, filesize: 21.9 MB), STP (STEP, filesize: 13.3 MB), SAT (3D ACIS, filesize: 23.9 MB), GLTF (glTF, filesize: 10.4 MB)