The model is made for anti-aliasing, the stack is not folded.
Antialiasing modifier is enabled (viewport display - 0 iterations, render -1-2 iterations)

Polys: 30,670
Verts: 30,375

-max 2015 corona
-obj (need to add MeshSmooth (1-2 iterations)
-mtl
-textures
-material library

For Corona render, it is recommended to install version not lower than 1.5, since the glossiness of materials is configured