$69 Oil And Gas Refinery Unit m6 3D model by hesh4design. Available on CGTrader with 87972 polys and 100058 vertices. Check it out on CGHub.
MAX (Autodesk 3ds Max, filesize: 66.5 MB), OBJ (OBJ, filesize: 1.03 MB), FBX (Autodesk FBX, filesize: 887 KB), DXF (DXF, filesize: 1.73 MB), STL (Stereolithography, filesize: 1.59 MB), 3DS (3D Studio, filesize: 453 KB)