Maya files importing Problems.

Hi everyone, I’m trying to import a file that I UV mapped and textured in maya, the files were originally .stl’s which I imported to maya, then uv mapped and textured, but when I import to unity there are no textures, and the mesh seems different too. I think the pictures show more than I can explain, top is in maya, bottom is imported to unity as .fbx

In the Import settings for Meshes is the Option Smoothing Angle

https://docs.unity3d.com/432/Documentation/Components/FBXImporter-Model.html